Essays on Histogram

Business Research Project Final: Research Report & Presentation

Discussion and Interpretation of Tables and Figures We start our interpretation and discussion from the descriptive statistics. The descriptive statistics was calculated by the means of Excel and the results are summarized in the table below: The average smartphones sales are 877.3647 units sold with a standard deviation of 328.6233 units. The 50th percentile or the middle element of the data is 855.3 units. Most often, the volume of sales was 322.5 units. The coefficients of kurtosis and skewness show that the data is quite close to a normal distribution (values are close to 0). The lowest volume of ...

Abstract

The paper describes a test and an activity conducted to check convincingly whether there is gender discrimination amongst bank employees and to demonstrate how randomization techniques can help determine whether there difference between proportions is statistically significant in a given case. The test yields a position wherein 35 out of 48 bank supervisors recommend an application for promotion, wherein the applications are varied just by gender and yields 21 male and 14 female recommendations. The test result is put to test using a randomization technique. The original sample is resampled 100 times and with every resampling a different composition ...

Business Statistics

Statistics is the methodology developed by scientists and mathematicians for interpretation and drawing conclusions from collected data (Isotalo, 2012). The main activities involved in statistics are collecting, processing, analyzing, interpreting, and presenting of data. Everything under these fields or anything remotely related to the fields, and the planning preceding these activities all belong to the domain of activities. Statistics is very broad and is not applied to science and mathematics alone but vast fields including business.

Qualitative versus Quantitative Data

Data used in statistical research can either be qualitative data or quantitative data. These data differs in their uses, their methods of collection, ...

Introduction

The decision on whether to invest money or deposit it in a savings account is influenced by many factors. However, the most significant factor would be the economic gain from depositing money in a savings account compared to investing. Various indicators can be used to determine the economic gain to be made in terms of purchasing power. One vivid indicator is the real interest rate. Real interest rate as an economic indicator describes the rate at which an individual’s purchasing power grows from investing activities. The real interest rate is derived from adjusting the nominal interest rates in ...

Homework 5

When submitting this file, be sure the Be sure you have reviewed this module/week’s lesson and presentations along with the practice data analysis before proceeding to the homework exercises. Complete all analyses in SPSS, then copy and paste your output and graphs into your homework document file. Answer any written questions (such as the text-based questions or the APA Participants section) in the appropriate place within the same file. The data in the columns to the left represent IQ scores of a sample of 30 high school students. In the general population, IQ scores have a mean of ...

Analysis of Activity Data Set of Restaurant Guest Counts

Analysis of Activity Data Set of Restaurant Guest Counts

Introduction

The present paper discusses a business scenario under the background of business data collected to inform the managerial decisions for the purpose. As per the scenario, the decision maker being a manager of a small town café which enjoys robust guest inflow during the summer months and a small population from among the residents are visitors to the same during the off season is faced with staffing decision problems. The season typically starts around the Memorial Day each year. The café adjusts its staffing based on the guest count during ...

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 ...

After the analysis, the histogram got indicates that there is a reasonable promotion rate for new employees. The distribution is bimodal as the distribution has a continuous probability that has distinct peaks. It can be seen that the distribution of salaries paid to employees has two or more modes which can be established by looking at the peaks of the histogram. Also, looking at the limits of salaries paid and their corresponding frequencies indicate that the peaks presented by the histogram have significant differences when it comes to their length. The descriptive statistics for salary, hourly rate, years of ...

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 ...

Diet is necessary to everyone for continuing the life. Its utility occupies a significant position in the biological world. The unique benefit the diet provides is of paramount importance in achieving the health-specific goals. However, alongside with knowing about the diet and its role in health, it is essential to develop certain awareness about its assessment. With the advancement of technology various approaches were believed to exist with regard to the dietary assessment. In such context, the present description deals with a topic entitled, Dietary Assessment Using Electronic Method.

Review

As per the sources, the connection between routine intake of ...

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 ...

I and my friend James wanted to find out the absorption capacity of different color pigments mixed in water, when exposed to the infra-red radiation. Our hypothesis was the dark color pigment, on being subjected to infra-red radiation, would absorb more energy and will show up in the form of difference in temperature obtained before and after the exposure. Our experiment was influenced by some of the experiences in daily life. First observation was the preference of the light color clothes in hot day, as the light color reflects the sunlight and absorbs the little, preventing the body from ...

Introduction

In 2014, despite the disappointing decrease in earnings of the mobile phones department and unconvincing performance of flagship Galaxy S5 sales, the Samsung company has succeeded in the US on the part of gaining the confidence of the market to the very brand by consumers. Thus, according to the results of a large study conducted in the US market, the Samsung took over the honorary title of the most revered manufacturer of mobile devices from the Apple Inc.. Annually updated index of consumer satisfaction (American Consumer Satisfaction Index), which is responsible for the accuracy of experts at Michigan State ...

Comparison of Maestro with Adaco ERP Vendor

The hospitality industry has competitively experienced a huge competitive edge across the globe day by day. Within the framework of Enterprise Resource Planning (ERP), the hospitality industry has several ERP vendors which provide different forms of software to provide a smooth operations of the industry’s activities. First, Maestro ensures provision of a full spectrum of hospitality services and software in infrastructure management, which includes vendor management, help desk support, upgrades, virtualization and integrations/migrations. On the other hand, Adaco provides a globally leading operation and purchasing control solution for the hospitality industry. The products offered by Adaco.NET encompass a ...

Income and Expenditure

Introduction Income and expenditure contributes largely to economic measures of an individual, country or continent. They determine the credit worthiness of a person or economic stability of a given country. Hence, my report will cover how income of an employee relates with his expenditure in the U.S. What actually am determined to prove is that, when a person gets higher income will his or her expenditure increase or decrease? For instance, I managed to find discrete data concerning income and expenditure from the ‘Economic data for the U.S.: http://www.bea.gov/’. The data had three variables namely, months starting from the ...

Question 1

The dream up product is 500 grams brown bread. The survey question was for this discussion was; how much are you willing to pay for a 500 grams loaf of brown bread? Using four prices ranges of between one and four dollars, a sample composing of ten friends and family members were asked how the survey question. In the excel sheet, the results of how many of the respondents were willing to pay a particular price for each of the four ranges was recorded. A scatter diagram of demand against prices was plotted to determine the relationship between price and quantity demanded. ...