Essays on Regression Analysis

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 ...

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 ...

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 ...

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 ...

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

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 ...

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 ...

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 ...

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 ( ...

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 ...

Business Analytics and Decision Making

Business Analytics and Decision Making

Introduction

Business analysis refers to the process of effecting changes in an organizational operation. This is done through a series of activities that are designed to identify an organizational business needs, and reaching a solution that will bring value to the organization. It includes process development and improvement and as well changes in the organizational culture and management practice. This research paper will explore the relationship between the number of website hits and sales in an attempt to make sales forecast based on the number of hits. The client is involved in the sale of ...

Research Question

The questions about health cannot be answered basing on knowledge and experience only. In other words, physiology, biochemistry and clinical experience are not enough to make conclusions about the factors that cause changes in human body. However, the medical science requires answers to numerous credible questions. The answers are obtained through statistical analysis of the vast datasets with patients’ social and medical characteristics. The larger the dataset, the more reliable are the conclusions. The dataset used for the study is based on 17 variables with 5209 observations. Therefore, the sample data can be approximated to the population data. The ...

1.0 Abstract Stakeholders are of central importance to every business organization. The success of any business hinges on the relationship that it has with its stakeholders. Disclosure of quality financial reports is significant for the capacity of business organizations to build confidence with their key stakeholders. Corporate governance and the audit quality have attracted the interest of researchers to determine how they impact stakeholders. Additionally, the implementation of IFRS (International Financial Reporting Standards) has impacted the direction of business organizations especially with regards to corporate governance. The question of whether the quality and extent of disclosure of financial information ...

Ministry of Health

Oman Specialized Nursing Institute Health Services Management Program 2015-2016 Research Methodology for Health Sciences I Identification of Causes and Consequences of Work- Related Stress among Midwives in South Al-Sharqia Region 4. Methodology

Research design

This study will employ a descriptive design to address the study questions. In this case, the researcher will conduct a survey to obtain data from the study participants. A descriptive design is used in studies that do not involve the manipulation of the study variables by the researcher (Valencia-GO, 2015, p. 97). This study seeks to identify the factors associated with work-related stress (WRS) and its consequences ...

Impact of Education, Employment and Income (Socio-Economic Conditions) on Health: Applied Multivariate Statistics in Public Affairs

Impact of Education, Employment and Income (Socio-Economic Conditions) on Health: Applied Multivariate Statistics in Public Affairs

Introduction

The present study concerns itself with identification and development of a set of predictive factors for state or condition of overall health in a give country or region. With increasing population and strain on natural as well as human resources, various stress and genealogical health issues are emerging as threats to public health. In this context the work done in this study can be pivotal in an international context. As it attempts and paves way for a establishment of an empirical base for ...

Abstract

Regression analysis is the statistical technique commonly used in econometric modeling and carrying out economic forecasts. This study sought to assess the precision multiple linear regression in evaluating the evolution in real GDP per capita in the USA between 1998 and 2011 using expenditure approach. Three macroeconomic variables were used; Gross domestic product, net investment and final consumption. Net investment and final consumption are model regressors predicting GDP. The researcher used MS Excel to carry out all the statistical analysis on the data. The analysis result shows weak linear development GDP increment. Small fluctuations were observed around the fitted ...

Introduction

This paper responds to relationship between finance and governance by evaluating how financial decisions are connected to corporate governance. In the rise of limited exceptions to corporate governance and finance seem to have natural tension, if there is no direct opposition. The polarity between finance and governance are two research areas that have been studied separately. It is essential to understand why these two areas function individually and separately. Certainly, the connection between financial decisions and governance are largely unmapped. The most relevant area relates to capital structure decision and their implications in creating a company’s value. Capital ...

Business Analytics

Executive Summary This study sought to assess whether customers who bought the African adventure will be willing to provide feedback. The study revealed that there more customers who are unwilling to provide feedback compared to those who are willing to provide feedback. A regression analysis was used to determine the factors that influence WOM intentions. WOM intentions were modelled as a function of age, income, trust and attitude. The analysis revealed that the demographic characteristics (age and income) do not influence WOM intentions. However, trust and attitude influence WOM intention. The paper recommends that smart marketing and advertising should ...

Abstract

There is always a need for the analysis of various data and information found about an activity to determine how several things are influenced by this data. This data can be for the genearal population or different people where the nature of activy data will be varying. The data and other sampled output will alws assist the researcher to study some of the specified behaviour in the subjects. The first step in the analsysis of any given data will be to understand what the data is alll about. Then the goals of the study or analysis of the data ...

ECON 4331W

Introduction The phrase "the rich get richer while the poor get poorer" has become a worldwide anthem at many political and economic forums. While these facts are actually true very few or practically no one goes forward to act in a manner seen to strike a balance if anything many individuals are individualistic and greedy. Elite economists from IMF recently released a study on the causes and consequences of rising income inequalities. It is believed as a result of income inequality there could arise a myriad of complex problems, most of which touch and significantly impact upon the economic ...

The Problem

For this case study, we focus on an application of regression analysis in engineering. In this case study, we use data to build a model for predicting average electrical output, y. In this case study, we use data from a Combined Cycle Power Plant to build a model for average electrical output, y. We examine the residuals, the deviations between the predicted and the actual electrical output levels, to detect an independent variable omitted from the regression model.

The Data – Source: UCI Machine Learning Repository

A combined cycle power plant (CCPP) is composed of steam turbines (ST), gas turbines (GT), and heat recovery steam generators . In ...

Abstract

In this case, we illustrate the application of multiple regression in economics. We gather data on the unemployment rate (dependent variable) and three independent variables; GDP per capita, maximum weekly unemployment benefit and population estimate for 2015. The data is collected from 39 different states. Regression analysis results show that there is a positive association between the unemployment rate and GDP per capita and population estimate. The relationship between unemployment rate and maximum weekly benefits is inverse. The evaluation of the reliability of the first-order model shows that it has a small coefficient of determination. The first-order model is ...

Produce the Pearson correlation matrix for all variables except the name of the printer. What are the two strongest relationships shown in the Pearson correlation matrix?

The correlation matrix is given in a table below ("Annotated SPSS Output: Correlation", 2016):

The strongest correlation coefficient is between Text Cost and Color Photo Cost (r=0.606, p=0.017). The next strongest correlation is between Price and Color Photo Time (r=-0.518, p=0.048). There is a strong positive linear relationship between Text Cost and Color Photo Cost. There is a strong negative relation between Price and Color Photo Time. These relationships are one we would expect, because lesser time spent on producing color photo usually costs higher. (b) If ...

Introduction

In this assignment, we will discuss and describe the application of statistics and probability theory to a real world problem. Our task is to evaluate and summarize the performance of a given stock (y). This report consists of the four parts. The first part is descriptive statistics of the given data between the two time periods and between the given stock and the Standard & Poor’s 500 index. Next, a hypothesis test will be performed in order to examine the performance of stock (y). The third part of the report includes Capital Asset Pricing Model estimation by the mean ...

This study seeks to assess the relationship between weight and height among children. Sargent evaluated the relationship between weight and height using data from 160,000 college students. The study revealed that there is a positive relationship between height and weight. However, the regression coefficient different with age a group. Weight was relatively stable for men between 21 and 29 years, while for women it is between 17 and 29 years. A regression analysis of the sub-set revealed that weight increases by approximately one kilogram for every increase in height. This study assesses the relationship using survey data that ...

Introduction

In this paper, we will discuss and describe the application of statistics and probability theory to a real world situation. We will choose a data set and apply one of the statistical procedures learned during this course. The data set was retrieved from the R. Weintraub (1962), "The Birth Rate and Economic Development: An Empirical Study", Econometrica, Vol. 40, #4, pp 812-817. This data provides information about the birth rates, per capita income, proportion of population in farming and infant mortality during the early 1950s for 30 nations. The purpose of this project assignment is to apply correlation and ...

Assignment 4

1. The Phillips Curve (a) The Output Gap and the Inflation Rate series are shown in figure 1. Using the Excel formula “=correl”, we find the correlation between these two variables to be -0.00206. The correlation coefficient ranges from -1 to 1, the closer the coefficient is to the extremes, the stronger is the linear relationship between the two variables. In this case, the correlation coefficient is close to zero, so there is almost no relationship between Ygap and Pi. Figure 1

The Output Gap and the Inflation Rate series in 1955 – 2015

(b) Figure 2 shows the Output Gap and the change in the Inflation Rate series. Again, using ...

It is impossible to underestimate the role of the sleep on the human organism. This biological process determines the working attitudes of a particular individual and brings a sufficient impact on the everyday life. The study collected is associated with exploration of the prevalence and impact of sleep problems on various aspects of people's lives. First of all, it is essential to figure out, what is the average health rate. The sample size if entire survey is 271, and for the question of “Overall how would you rate your general health” (Pallant, 2010) there is one person, who did ...

Introduction

In this paper, we will discuss and describe the application of statistics and probability theory to a real world problem. Our goal is to provide clear and meaningful statistical exploration of the National Football League data for the 2005 season. Starting from the primary issue of this case, we will provide descriptive statistics to explain the given data set. After this, the multiple linear regression will be developed to get the best prediction of the percentage of games won, based on the given variables (factors).

Data

We are given with the data set of 32 observations. Each observation reflects a ...

Abstract

The study has sought to analyze the data of Apple Inc. and realize the relationship between sales revenues and sales, general and administrative expenses and research and development expenses. It has employed regression and correlation analyses. Results indicate that both sales, general and administrative expenses and research and development expenses relate positively with sales revenues.

Introduction

S G& A is the initialism used in accounting and business to refer to sales, general and administrative expenses, which are major components of non-production costs in a company’s income statement (Warusawitharana, 2015). Selling expenses are direct and indirect expenses incurred in selling, ...

Regression Analysis

Using the regression analysis, we are willing to reveal the real trend behind the growth multiples of the company, i.e. whether the trend in the financial multiples posted by the company is real or just inflated numbers. Stated otherwise, regression analysis is performed to understand how sustainable are the financial numbers and how can these historical trends help us in forecasting the future performance of the company. The first two multiple analyzed were sales per share and EPS as these multiples reveals the amount of money the entity is making. Analyzing the trend, we witnessed that while the sales ...

Introduction

The phrase “the rich get richer while the poor get poorer” has become a worldwide anthem at many political and economic forums. While these facts are actually true very few or practically no one goes forward to act in a manner seen to strike a balance if anything many individuals are individualistic and greedy. Elite economists from IMF recently released a study on the causes and consequences of rising income inequalities. It is believed as a result of income inequality there could arise a myriad of complex problems, most of which touch and greatly impact upon the economic growth ...

Executive Summary

In view of the issues facing the ABC management, the key solutions identified relates to three issues on cash and budget, innovation and product development as well as theft and fraud reduction. With that, The Cost and budget management solution is meant to enhance the business performance by reducing the excessive and unnecessary use of the company resources. That would be achieved through key initiatives involving effective management of the sales and expense as well as debt management that would cut on expenses and the interest paid on debt by having more responsible personnel overseeing the accounts and their ...

Abstract

This dissertation formulates a research dissertation and strategy for a study into the impact of Islamic banking on the economic development of societies within which such banks operates. To this end, the research examines the major tools and impacts of Islamic banks on society by conducting a literature review. This is followed by the deduction of research questions and a hypothesis that will be used to form the parameters of the entire research. The purpose of this dissertation is to investigate the relationship between the growth of Islamic banking worldwide and economic development of countries wherein this growth is ...

Regression Analysis and Time Series Modelling

Regression Analysis in Legal Scenario Multiple regression and time series analysis have played an important role in legal context also. For instance, in the famous supreme court case of McCleskey v/s Kemp, the appellant, who was sentenced to death, claimed that race of the criminal plays a very important role when the judge decides the punishment. Accordingly, David Baldus, a professor at the University of Iowa, ran regression on the number of death penalty cases, while keeping the race of the criminal, his past criminal record, method of killing and motive of killing as independent variables. Ironically, the outcome ...