Essays on Skewness

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 ...

Objective

I am going to compare the prices in the South Atlantic States (Group 1) to the prices in the East and West South Central States (Group 2). The question to answer is if the prices in the south are lower than in other regions.

Conditions and Rejection Criteria

The test is the comparison of the mean values of two groups: houses in the South Atlantic States and the East and West South Central States. The sample size is 8 houses prices in each of the group, total 16 observations. The research question is interpreted into hypothesis. The null hypothesis H0 states that the ...

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 ...

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 ...

Human development is a process of providing mechanisms through which people can flourish and attain self-actualization in their lives. The rationale of human development as a process goes beyond focusing on economic development as an indicator of people’s wellbeing. It therefore incorporates other dimensions which are crucial in establishing the extent to which people would describe quality life. Traditionally, most economists have used quantitative indicators such as GDP Per capita as a measure of people’s wellbeing in a particular economy. The reality is however, different because quantitative indicators such as these are limited to assessing economic success ...

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 ...

In the past, people lived in towns, and traveling and communication with the world were complicated. Therefore, people had little or any choice of food, goods, medicine, leisure activities, or job. The XXI century is characterized by the fast-paced development of communication, technologies, and transportation. As a result, people can meet, communicate, travel, and even run business with partners who live on the other side of the globe. Therefore, the volume of information and the number of choices which people have to deal with have increased. People have to make decisions and choose every day. In the world of ...