Essays on Regression

“Mother’s Spanking of 3-Year-Old Children and Subsequent Risk of Children’s Aggressive Behavior” is a research conducted by Catherine A. Taylor, Jennifer A. Manganello, Shawna J. Lee and Janet C. Rice. The research is a psychological study of 3-year old children who have been subjected to corporal punishment such as spanking and has attempted to study its relation to children’s aggressive behavior during a particular time period; the age group being 3-year olds and 5-year olds. Several demographic features and possible relative factors of the study were also assessed. The study is of vital significance as corporal ...

Introduction

Planning is an important aspect of managing any business. Planning sometimes involves prediction of the future conditions. Forecasting sales is significant in profit planning among other strategic decisions. Several methods are used in forecasting sales. A business should apply the method that most accurately estimates the future sales. Excellent Consulting Group wants to identify the best method to forecast its sales for year two. A forecast has already been made using the regression analysis method. The technique involved developing an equation which gives the monthly sales figure as a function of the number of customers in each month. The ...

Abstract

Using the regression equation and given values of independent variables, we estimated the elasticity of each of them and ascertained that the product is highly elastic to price levels and therefore, the firm can consider to decrease the price levels in order to increase their market share. At the same time, cross elasticity and income elasticity were also significant in relation to the demand of the product, although advertisement expenditure has negligible impact on the product’s demand. Hence, own price, price of related goods and income of consumer are three major factors which the firm should incorporate while ...

COURSEPROFESSOR

DATA First Evaluation The client dependability and the customer satisfaction is one of the main part of the business. The company need to come up with some of the strategies in order to keep the customers engaged in the business as well as to make sure that the customers are getting the services that they desired to receive from the restaurant. The buyers take different equation in the consideration while they go for any type of purchase. The buyers look at the quality, outlook and the products variable in order to make the correct decision. So, the quality and ...

Post-stroke dysphagia, a potentially fatal complication, affects an estimated 23-50% of all stroke survivors. It is associated with a seven fold increase in the risk for aspiration pneumonia. Aspiration pneumonia increases the catabolic demands of the body and in the settings of impaired swallowing leads to a vicious cycle of malnutrition, dehydration, and further infections (Shaker & Geenen, 2011). Dysphagia affects a significant number of patients with hemispheric stroke which is the main subtype of ischemic stroke in the general population (Kumar et al., 2011). The functions of swallowing are subserved by a vast brain network. The inferior peri-rolandic sensorimotor ...

(Author, Department, University,

Corresponding Address and email)

Clinical Question What would be the effect of competitive food and beverage (CF&B) policies on student weight outcomes in comparison to the students who have not followed the CF&B policies and those who have followed some other policy according to which some of the competitive foods are available to students?

How the clinical question indicates the type of study that will be done (quasi-experimental vs. experimental)?

This clinical question is showing the comparison of two groups. One comparison is that of the students following CF&B policies with the students who have not followed these policies. Second comparison is that of the students following CF&B policies with the students who have following some ...

Results/ Data Analysis

1. Were the analysis undertaken to address each research question and hypothesis? The analyses were adequately done to address all the hypotheses in the study. Four hypotheses are guiding the study (Annesi and Mareno, 2015): 2. Were the appropriate statistical methods, given the level of measurement of variables, the number of groups being compared, and assumptions of the statistical test? Appropriate statistical methods were used for the analysis of the data gathered during the study. First, regression analysis was used to assess the prediction of emotional eating by body satisfaction at baseline. A multiple regression analysis was also ...

Abstract

This paper explores how research methodologies can be used to resolve organizational issues. Using Starbucks as the company of focus, this paper discusses the qualities of qualitative and quantitative research and how they can be used for investigation and analysis in an organizational setting. It is hypothesized, for instance, that the decline in Starbucks’ sales as well as the poor performance of some of its stores is due to poor customer service. The concept of customer service, however, is too abstract to measure directly. However, this hypothesis can be determined using qualitative research methods as opposed to the quantitative ...

Research Paper

The research paper is designed to analyze the impact of Saudi 2030 initiatives and the current working capital practices on the financial performance of the companies in the retail sector of Saudi Arabia. Rather than relying on the secondary data, which was partially available only for multiples related to the working capital of the companies, we designed the entire research study using the cross-sectional layout. As part of this research method, a questionnaire, designed in consultation with the experts, was used. The questionnaire was categorized in two categories where responses related to qualitative aspects and quantitative aspects were recorded ...

Doctor

ABSTRACT Young people in the United States are battling depression in record numbers, reaching an all-time high of 3 million patients in 2015. Researchers are continuing to search for alternative or additional methods than therapy and medications to improve depressive symptoms in teenagers and young adults. Some studies have demonstrated that as possible option in easing depression is physical exercise. In addition to assisting mental health issues, exercise promotes social interaction, physical health, and appearance. However, research has focused primarily on adults and therefore additional studies are needed with focus on the impact of exercise on depression in young ...

Abstract

Linear Regression (LR) forecasts the value of a random variable (dependent variable) for a given value of an associated independent variable. The regression equation provides the formula for such a calculation. Simple Exponential Smoothing (SES) forecasts the bases its forecasts on a weighted average of past data, with more weight on the more recent periods. A smoothing factor helps in providing weight. It generally forecasts for the short-term. In the present case, we forecast the sales data for year-2 for ABC Furniture Company using both the methods. For SES, we use two smoothing factors α equal to 0.15 and 0.90 ...

Different Types of Facebook Page Posts

Different Types of Facebook Page Posts Social media marketing is consistently growing as more consumers and businesses become involved in social media sites, and various studies have confirmed the utility of social media sites such as Facebook in building brand image and equity for businesses owners (Kim, Sung, Lee, Choi, & Sung, 2016). However, the growing number of information available on the Internet also means users are overloaded with content and need to be selective of where they direct their attention. For Facebook page owners, that means their posts will be less likely to appear in the News Feeds of ...

Abstract

In this document, strategic analysis of the two selected industries from the London Stock Exchange for the period January 2015 to December 2015 is presented. 530 and 570 that are Pharmaceutical and Energy Exploration Sector. The second part of this report shares analysis and interpretation of the monthly capital using descriptive analytic and trend analysis. Moreover, business forecasting is done using regression analysis. After seeing the trend lines for market capitalization of the both sectors, it can be seen that the pharmaceutical industry had relatively higher market capitalization average during the period. On the other hand, the market capitalization ...

Questions for Exams

Question 33: Describe the economical content of the cumulative frequency if you analyze the series The economical content of cumulative frequencies if examined in series gives the total sum of all the frequencies displayed in a table for data analysis of samples. Moreover, when the series are accurate, one can tell the sequence of the data as it appears in the worksheet and derives conclusions from the primary variables.

Question 38: Explain the economical and statistical content of the components of following regression equation.

Y intercept is the value of the depreciative variance explained using the alpha constant. Moreover, Y is considered as the value of two or more independent variables for observation. The € ...

Abstract

The primary concern of the sit-to-stand and walk training tasks, prominent in the health institutions target patients with knee problems or those recovering from surgical operations as a safe means of initiating rehabilitation or healing process. The use of gait initiation process sustains the efficiency with which the patients gain their mobility through the dynamic processes anchored for coordinating center of pressure and the body center of mass of the individual patient. The demonstration of the ability to sit, stand and walk is a clear expression of the positive progress made by patients in their recovery plans. The observable ...

Abstract

Regression analysis estimates the value of a random variable (dependent variable) for a given value of an associated independent variable. The regression equation provides the formula for such a calculation. In the present case, which is about the analysis of the dependence of total monthly sales on the monthly customer traffic, the consultant first examines to see if there is a correlation between the two variables. To achieve this, the consultant uses the scatterplot, plotting the points on a graph. After analyzing the scatterplot, the consultant is convinced that there exists a strong positive linear correlation between the two ...

Introduction

This term paper is completed to show the understanding of the statistics and to demonstrate the application of probability theory to a real world problem. The aim of this research project is to pick a data set that most closely ties my chosen field and perform statistical procedures such as descriptive statistics and statistical inference using the selected data. Since my field lies in the area of sales, real estate and business administration, I selected the Goodyear Arizona Real Estate Sales Data. The main research question I will investigate in this paper is: what are the factors that have ...

Drug test

Impact of age and drug on the duration In this test, a drug was administered to 28 out of the 48 respondents. The age of the respondents and the drug were the independent variables while the participants’ months to death or end of trial or study time was the dependent variable. The observations were recorded for the 48 participants and the data was regressed using the Gretl software. To determine the impact of age and drug on the duration, we analyze the regression output. The measures of interest are the coefficients of the two variables, Z statistics, and the ...

Planning future activity plays a crucial role in a company as it plans for the future demands of the market. The future planning of the company for the production, finance, marketing, etc., can be done through forecasting technique. The forecasting plan helps the organization to establish the sales performance goals, get real and accurate pictures of sales, estimates the number of raw materials, the workforce of the production. ABC Furniture Company is one such company that likes to predict the sales for their subsequent year based on the customer traffic data (Shim, 2000). However, before proceeding with the sales ...

Abstract

In 2016, Britain voted to exit the European Union, now commonly referred to as Brexit. The European Union was a political as well as economic bloc. The citizens of Britain voted to leave the bloc for various reasons. However, it is certain that the move will have effects on the lives of people and companies both within Britain and in the rest of Europe. This study focuses on the impact of Brexit on British airways. This is the national carrier of the United Kingdom. The European Union allowed uninhibited travel of citizens of member countries between borders of the ...

About the paper

The paper is commissioned to delineate the linear and log-linear multiple regression model where the dependent variable, earnings per hour, will be regressed against two independent variables, education and experience. As part of this analysis, we will cite multiple journal articles, books and other related sources to learn more about the regression analysis and how the statisticians perform the data analysis these days. Both the regression models, i.e. linear and log-linear multiple regression will be performed in excel and the output will be attached in the appendix section of the paper. In addition, we will also test the significance ...

Summary Paper of Research Paper

Analysis to Study Housing Values in Boston Introduction The analysis of company activities, as well as the enactment of its plans, applies the concept of linear regression as the technique of analysis. Boston is a place in England that covers both the Boston Municipality, as well as the metropolitan region (Bluestone et al. 41). The area is famous as Combined Statistical Area, consisting of the Manchester Municipality, the Cape Cod in Massachusetts, the Worcester, the Providence, as well as the South Coast Region. The metropolitan statistical area entails the part of Massachusetts, the south coast region, and the Cape ...

Introduction

Statistics is a branch of mathematics, aimed at collecting and analyzing data via different methods such as analysis of variance, kurtosis, skewness or regression analysis. Nowadays, statistics helps processing data with a help of creating various charts that in turn help visualizing complex data sets. There are two major types of statistics, descriptive statistics and inferential statistics. Descriptive and inferential statistics require proper hypothesis formation and thus proper selection of the statistical tests that in turn have to be analyzed and interpreted successfully.

Descriptive Statistics

Descriptive statistics implies application of various coefficients that simplify process of data processing and aggregation (Trochim, ...

Introduction

Spectrophotometry is one of the most common and efficient means of chemical analysis currently used in estimating the concentration of some chemicals. The technique exploits the radiation absorption property of various chemical substances in determining their concentrations. Spectrophotometry is based on Beer-Lambert Law. Beer-Lambert Law is the linear relationship between the absorbance and concentration of an absorbing species (Nair, 2010; Burrows et al., 2013). The mathematical expression of Beer-Lambert Law is shown in equation1 below: A=aλ*b*c Equation 1 In the equation 1 shown above, A represents the measured absorbance, a is the absorptivity coefficient which depends on ...

Abstract

The study was performed to determine the effect of marital status on the body mass index. The data used contained a sample size of 6878 adults from England aged above eighteen years. The data was collected through a Health Survey that was performed in 2011. The data was analysed using t-test, one-way ANOVA with Tukey HSD post hoc test, and the linear regression. The study found that there was no correlation between marital status and the body mass index. However, the effect of marital status on the body mass was statistically significant even though marital status accounted for 0.2% ...

Discussion

The concept of the correlation coefficient is crystal clear to me. I have understood that the value of correlation coefficient ranges from -1 to 1. The relationship between the variables increases as the value moves away from zero. However, the movement in the negative direction indicates an increase in negative relationship and movement in the positive direction indicates increased positive relationship between the variables. In a case of negative correlation, an increase in the independent variable leads to decrease in the dependent variable. On the other hand, in positive correlation, an increase in independent variable leads to increase independent ...

Introduction

Small businesses and entrepreneurship contribute to economic growth, a creation of additional jobs, fair competition, a decrease of monopoly. Historically, the male population was in the majority of those who managed businesses. Nowadays, more and more women create their own entrepreneurship yet some of the business located in developing countries seem to leg behind. The survey suggested several hypotheses according to which women do not intent to take the risk and expand a business, turning it into more lucrative. The research study on “The performance of female entrepreneurs: Credit, training and the moderating effect of attitude towards risk-taking” suggests ...

Identification

The identification section of the questionnaire comprises of discrete prompts. Consequently, the data collected from the prompts will be interpreted through principal content analysis and general conclusions on the data made based on the discrete values. The identification component is mainly used as a control variable in the study; hence, allowing for the identification of the suitability of the respondents in meeting the objectives of the study. Notably, the data will be assessed using descriptive statistics, which provides a general perspective on the characterization of the respondents in the study.

Income and Wellbeing

The interpretation of the income and wellbeing data requires ...

Chapter 3: Methodology

3.0 Introduction The theory of purchasing power parity is essential for the study of international trade since it argues that there exist a relationship between prices of products and exchange rates. This theory provides a framework for assessing long-term changes in the exchange rates. It states that similar goods and services in various countries should have the same cost in the long-run (Frankel 153). Essentially, the PPP theory is based on the assertion that the exchange rates tend to adjust themselves in such a way that there no opportunity costs for buying particular goods or services in a particular ...

2.7 Conceptual Framework Figure 1: Conceptual Framework (Source: Author) It is clearly evident from the above figure that a possible relationship exists between the confidence of decision makers and the consistency of their judgment. And Confidence and Consistency are both independently affecting Quality. 2.8 Research Hypothesis Based on the analysis of the literature that has been conducted above, there is a positive relationship between confidence and consistency. It seems like more confidence leads to more consistency. Therefore, the first hypothesis will be defined as followed.

However, relationship between confidence and consistency has implications for the quality of decision making. ...

Physical Activity and Level of Depression among Youths in the United States

A00493777 Physical Activity and Level of Depression among Youths in the United States

Introduction

According to a recent presentation by The Centers for Disease and Control and Prevention, frequent physical activity among youths and adolescents is an important factor in enhancing strength and stamina, and it is helpful in building healthy bones and muscles (Centers for Disease Control and Prevention, 2015). It was also discovered that physical activities are a critical factor in reducing stress and depression among the youths. Failing to engage in regular physical activity has been established to cause obesity and overweight as well as other health ...

Report on the relationship between assets and sales

Executive summary A company’s investment in foreign assets has a bearing on the amount of foreign sales it makes. The regression analysis indicates a positive association between the ratio of foreign sales to total sales and the ratio of foreign assets to total assets. This implies that transnational companies should invest more in foreign assets to improve their foreign sales. They should also consider other factors affecting foreign sales such as international marketing strategies including advertising expenditure, among others. Investment in foreign assets is not the only contributor to foreign sales as indicated by the model’s coefficient ...

An Assignment Submitted by

Research Question The research conducted by Duncan, Wilkerson & England (2003) aimed at investigating the impact of marriage and cohabitation on licit and illicit drug abuse. In order to investigate this issue, the scholars use two theoretical perspectives, namely a cultural framework and a rational choice theory. The first perspective evaluates marriage as a set of cognitive associations that exceed religious and legal rules. According to this view, marriage makes people make better choices in life and recognize their responsibilities, as a couple has to live together. A rational choice theory sees a couple as two self-interested stakeholders who follow ...

Question #1

If the Board of Schmeckt Gut will convince the Government of Industria to make a free trade agreement with Atollia, there will be no tariffs. According to the regression equation, we have estimated in Module 4, the coefficient of tariffs is negative. Hence, if tariffs are applied, this leads to a decrease in the demand of our energy bars. Without tariffs, the demand will be increased. Since the demand will be increased, the supplier should increase the volume of production. This, in turn, leads to an increase in Schmeckt Gut’s labor demand, as it needs more employees to ...

INTRODUCING EMERGENCY SEVERITY INDEX (ESI) FOR BETTER PATIENT OUTCOME

Introducing Emergency Severity Index (ESI) for Better Patient Outcome Introduction to ESI The core objective of various triage tools across the emergency department attributes to the systematic prioritization of the patients in accordance with the severity of their clinical conditions in the context of determining the period until which the patient might wait in the emergency department before his/her evaluation by the healthcare professionals (Gilboy et al., 2011). The nurse professional after executing a focused assessment of the patient determines the waiting time and accordingly provides a triage acuity level of the patient in the emergency department. The patient ...

Question 1

In hierarchical multiple regression, variables are added into the model in different blocks. In this case, the dependent variable is the memory function in elderly people. The research is aimed at finding the nature of the association between memory function and social contact. Two blocks will be used in this regression analysis. Social contact is the primary independent variable hence block 1 will include social contact and memory function among healthy elderly people. The two variables will be regressed to obtain a model. After regression, the R-Squared of the model is checked to determine the changes in Y (memory ...

Question one

The analysis of data through the description, and summary of records in a meaningful manner so that the patterns may emerge from such information is known as a descriptive statistics (Investopedia, 2007). However, in certain circumstances, it does not allow data specialists to make conclusions beyond the information to be analyzed regarding any hypotheses that are being prepared. The descriptive statistics enables one to make a characterization of data based on its properties (Baseline Help Center, 2016). Therefore, the main types of this statistic that can allow one to analyze business decisions are: variation such as standard deviation, range, ...

The Association between Physical Activity and Level of Depression among Youths in the United States proposal

Introduction According to a recent presentation by The Center for Disease and Control and Prevention, frequent physical activity among youths and adolescents is an important factor in enhancing strength, stamina and is helpful in building healthy bones and muscles (Centers for Disease Control and Prevention, 2015). It was also discovered that physical activities are a critical factor in reducing stress and depression among the youths. Failing to engage in regular physical activity has been established to cause obesity and overweight as well as other health related complications (Azevedo Da Silva et al., 2012). Thus implementing a regular physical activity ...

Influenza Vaccine on the Elderly

Introduction Based on current evidence, there is an overwhelming response with respect to the clinical efficacy, safety, and feasibility of influenza vaccine in the elderly. The impact of the vaccine is observed in elderly patients with chronic diseases with an influence on reduced mortality and hospital admissions. Based on a recent publication, the influence of the vaccine is also observed among health elderly population around the globe. Researchers and healthcare providers state that the declining age is associated with poor antibody response coupled with various confounding factors. However, these factors have not been clearly stated in literature. On the ...

ANALYSIS AND FINDINGS

3. Analysis and Findings 3.1. Introduction 3.2. Analytical Tool – Regression Multiple regressions are performed to assess the relationship of single independent variable i.e. crude oil prices (on Brent benchmarking) with all four dependent variables including Indian GDP growth, Indian Balance of Payments, Exchange rate between INR and USD, and the inflation rate in India. 3.3. Measures for Independent Variable – Crude Oil Price Crude oil is the most commonly traded commodity in the international market. Crude oil price stands independent variable in the underlying study, and same is considered for this purpose of analysis. The Periodic time frame for change ...

Introduction

The Alfa Bank is a medium sized bank, which has branches in Russia, Ukraine, Belorussia, Nederland, and Kazakhstan. The bank is a universal financial institute and provides all types of financial services to individuals, small and medium-sized businesses. Now the bank already has developed hardware and software infrastructure. The operating system for workstations as well as for servers is Windows. It uses Colvir software as ABS, Compass as card system, CRM (customer relationships management) software and different kinds of distance banking solutions for more efficient customer service.

Problem description

For years of bank operating a huge data amounts were collected (hundreds ...

Introduction

The child welfare organizations are objectified on assessing the prevalence of child abuse among the referred cases in order to prevent the occurrence of future abuse among the children who are identified at a high risk of neglect and abuse. The child welfare authorities are also focused on determining the prevalence of assessing the consequent neglect among the children with the history of being abused (Enosh & Bayer-Topilsky, 2014). The assessment by child welfare organizations are incorporated by the risk assessment tools in which the explicit criteria and undeviating approaches are used to derive the results. These results are derived ...

Introduction

Research Problem The prevalence of social anxiety disorder (SAD) is considered as the most common disorder among the individuals regardless of their age and gender. The individuals with social anxiety are more prone to identifying the social threat at a higher extent and are sensitive to social situations. The high extent of social anxiety can lead towards the more complicated psychological conditions, mainly comprising of suicidal behavior, mood disorders and substance addiction, which eventually affects their academic and professional performance. The individuals with social anxiety tend to have highly dysfunctional personal relationships which also affect their quality of life ( ...

Business managers in Nigeria lack understanding of the business development process needed for successful growth in quarry in Akamkpa, Nigeria.

Requirements for the Degree of Prescott Valley, Arizona

Introduction

A quarry is like an open pit mine from where minerals are extracted that are mostly used in the construction of buildings and civil engineering works. Quarrying is a part of mining but is slightly different as it has a close connection with the society because different builder of a region requires material that is extracted in order to complete their work. There are not many restrictions for quarrying as it is open for all the contractors. Due to this reason all the managers and developers at different levels need to ...

1. Introduction This section defines a systematic approach using tools and techniques of research to carry out a research project (Jha, 2008; Kothari, 2004; Newman & Benz, 1998). 2. Research Approach The research aims to base the underlying study on quantitative approach for data collection. Quantitative methods will be utilized for the collection of theoretical data? A statistical analysis (linear regression analysis) will be conducted to achieve this purpose with the help of the secondary quantitative data relating to chosen economic indicators in India. Past studies can also have some numeric information and inference as well. This way, the study ...

Abstract

Pinto bean is a popular plant in the United States and Mexico, so knowing how it grows is an important topic in the field of botany. One of the factors that influence plant growth is the soil condition in which the seeds are planted on. Based from the many studies conducted on pinto bean, as well as soil condition and plant growth, the amount of water in the soil is an important factor in the quality and production rate of the plant. Lack of water can negatively impact the growth of pinto bean, but some varieties of the plant ...

Introduction

The quarterback serves as the offensive head of a football team. He is responsible for setting up the plays in order for the team to gain yards. His plays can be seen in different ways such as passing or running (Strauss, n.d). Depending on the decision of the team during huddle, the quarterback must be the one to ensure the success of their plays. Unfortunately, not all the plays made by the quarterback are successful. There are several factors which contribute to the failure of the plays, such as failure of execution of the designated roles, being outsmarted by ...

1.0 Background Capital structure decisions are critical for the profitability and or growth objectives of for-profit organizations. Financial managers are given the liberty of choosing the components of their capital structure as long their maximize the value of the stock and at the same time achieve some of the core objectives of firms. Some of these include maximization of the company’s value. Managers all over the world strive to find a combination of investment with the best gearing ratio. According to Huber (2011) excessive use of debt financing could lead to too much of the firm's profits being ...

Significance of Accounts Receivable Practice

The most primary element for the success of a business is the way in which the systems of accounts receivable management, collections and billing are maintained. Often, this type of management collectively is known as the system of collections management. The main key to the success of this system is to manage it diligently. It is because having large amount of customers is not enough to run a successful business; revenue needs to be collected from these customers (Clarke, 2016). There are a number of reasons for a business setting up the accounts receivable in a given organization. When ...

Management

It is important to know the internal rate of return because the percentage figure gives the speed of reinvestment that adds up to the break even value. Additionally, the Hurdle Rate is vital since it displays the financially attractive level of the investment. Further, the difference between cash flow and profit is that the amount recorded is the immediate cash in the firm’s account while the profit includes the amounts that will be paid in future. It is, however, important to get the NPV for any decision which flows into multi-periods because investment takes place over time and ...

Question one

The descriptive statistics is the analysis of data for describing, showing, and summarizing records in a meaningful way so that the patterns to emerge from the information. However, it does not allow the analysts to draw conclusions beyond the data to be analyzed concerning any hypotheses being made. The types of descriptive statistics are as follows: The measure of central tendency. It is the way of describing the central position of a distribution for the collection of data. That is the frequency distribution the distribution pattern of records of a company particularly from the lowest to the highest. Therefore, ...

The adaptive immune system is the subsystem of an entire immune system. Characteristically, the adaptive immune system is comprised highly systematic and specialized cells and processes whose main purposes are to eliminate or inhibit the growth of pathogens within specific hosts. The adaptive immune system is infamous for its ability to place the body in better states to fight similar pathogens in subsequent infections. Nonetheless, both the cell-meditated and humoral immunity of the adaptive immune systems lacks the desirable ability to distinguish between harmful and harmless invading pathogens.

Primary Cell Type

Lymphocytes are the primary cell type in the composition of the ...

The primary difference between a data warehouse and a database is the that a data warehouse is a repository of data that has been obtained from different sources over time, and that is stored in a unified schema and is typically used for decision support and analysis. On the other hand, a database is a representation of the presented status of particular data that has been stored and is mainly used to handle live quires and online transactions. The similarities between a database and data warehouse are that they are both means of storing large amounts of data. Characterization ...

ANOVA is a test use to measure the significance of the difference in the means of various groups. The F distribution is a significant test in ANOVA. The significance of the F distribution is brought about by the basic assumption made by an analyst when performing ANOVA. The principle assumption is that the populations have equal variances. The F distribution helps the analyst test the assumption (Goos & Meintrup, 2016). This is because during the calculation of the F ratio, the computation process also gives the result of the estimate of variance. One of the estimates of variance yielded through ...

Ray WA, Chung CP, Murray KT, Hall K, Stein C. Prescription of Long-Acting Opioids and Mortality in Patients With Chronic Noncancer Pain. JAMA. 2016;315(22):2415-2423. doi:10.1001/jama.2016.7789.

Prescription of Long-Acting Opioids and Mortality in Patients With Chronic Noncancer Pain Wayne A. Ray, PhD1; Cecilia P. Chung, MD, MPH2; Katherine T. Murray, MD2,3; Kathi Hall, BS1; C. Michael Stein, MB, ChB2,3 [+] Author Affiliations JAMA. 2016;315(22):2415-2423. doi:10.1001/jama.2016.7789.

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Abstract ABSTRACT | INTRODUCTION | METHODS | RESULTS | DISCUSSION | CONCLUSIONS | ARTICLE INFORMATION | REFERENCES Importance  Long-acting opioids increase the risk of unintentional overdose deaths but also may increase ...

In this paper, the importance and the application of probability and statistics tools to a real world problem will be considered. My goal is to investigate if the hours that students studied and the grade they earned on a test are related factors. The sample provided contains the data of 30 students. Their hours of study and exam scores are recorded and given in the spreadsheet. In order to determine the strength of the association, I will use Pearson’s correlation coefficient. The correlation reflects the statistical association between random variables. If the variables are related, a change in ...

Chapter 1

Introduction

XX century was characterized with the significant technological progress, which has improved the life of people. Numerous products and services became available, labor and domestic life became easier and more comfortable. However, waste problem is the other side of the technological progress. The solid, liquid and gas waste are formed, and thus land, natural water and air quality degrade. Therefore, in XXI century the research efforts are dedicated to development of methods for sustainable use of water, gas, and solid resources. Wastewater polluted with dye residuals originate from textile, leather and food industry. These industries produce goods that ...

Final Case Study Project

Introduction In this paper, we will describe and discuss the application of statistics and probability theory to a real-world problem. Our task is to study the impacts of a variety of factors influencing house prices in Prescott, Arizona. As it was mentioned in the previous studies, there are five lakes in the Prescott metropolitan area that provide a number of benefits to those who live or spent their holidays in this area. These benefits include scenic beauty, recreational opportunity, clear water, fresh air and so on and so forth. It is assumed that the property prices should depend on ...

Abstract

The current government has consistently been trying to reduce the costs of healthcare and at the same time improve its quality. This paper focuses on the current state of healthcare through an extensive research on the population. The research uses a cross sectional design to collect data and come up with relevant conclusions. The research project aimed at using a homogenous population to come up with accurate results. Such a population involves participants who have the same knowledge about the subject. Such participants are easily obtained through a referral process where one participant refers another. A total of 50 ...

Impact of internet penetration, education and investment on GDP

Variables and Design With the purpose of understanding the impact of economic variables on GDP of a country, we propose to include some conventional variables such as primary education and gross investment to GDP ratio, along with non-conventional factors such as internet penetration in our multiple regression analysis model. As part of this model, while the GDP of a country will be the dependent variable, other variables stated above, such as primary education, gross investment to GDP ratio and internet penetration will be the independent variables. Important to note, owing to some limitations relating to the data availability, for ...