Measures and Scale Statistics Project Example | Topics and Well Written Essays - 500 words

Measures and Scale - Statistics Project Example Various tests have been employed to determine if the regression model is satisfactory. The model is said to be satisfactory, if the estimated regression equation can predict the value of the dependent variable given values for the independent variables. The relationship between these two measures is that they analyze the extent to which variables are related. However, these two do not assess cause and effect. Stress is part of normal life though too much stress can cause emotional, psychological and physical problems such as heart disease, irregular heart, chest pains and high blood pressure (Quinn & Keough, 2002). Our main concern is to study the relationship between stress and high blood pressure. We want to ascertain whether medical researchers are right with regard to stress causing high blood pressure. Let us determine the relationship of these two by using a sample of 20 patients who had their stress test score and blood readings taken. Regression and correlation is used in ascertaining the relationship as shown below: From the above workings in the table, the correlation coefficient is one. Therefore, the relationship between stress and blood pressure is a linear one. This simply means that when stress levels increase, the blood pressure also increases. The regression model is determined is fit as we were able to predict the values of blood pressure at given levels of stress. The correlation is +1, therefore a relationship which is linear exists between BMI and birth weight. Using regression analysis, it will be not possible to predict the birth weight given the BMI because the model is Ã… · =

Financial analysis Essay Example | Topics and Well Written Essays - 2000 words - 3

Financial analysis - Essay Example It serves government consumers, individual consumers, small and midsized businesses, and education enterprises. Apple’s financial year ends on the last Saturday of September and has an approximate period of 52 or 53 weeks. In connection to this, the main aim of this paper is to take out Apple Inc. financial analysis. Financial Analysis refers to the assessment of the profitability, stability and viability of a business entity or project. It is based on information derived from the financial statements including the Balance Sheet, Statement of Cash flow and the Income Statement, a single financial statement cannot give full information about the firm but together they give useful information (Gibson 2012, pg. 6). It is useful in benchmarking that majorly involves comparison of different companies’ performance comparison or comparing the company’s performance over time. The information is also used by management and investors in decision making and forecast future performance. We analyze data as revealed by Apple Inc.’s annual Reports and also carry out ratio analysis that helps us discover more information about the business (Michelle 2012, pg. 45). Apple operates in different geographical areas including the Americas, Japan, Europe, Asia Pacific and retail operations, it is hence involved in segment reporting and all the information from various sources is consolidated and used as the company’s financial information from which the company’s performance is analyzed (Brooks 2012, pg. 86). This paper aims to analyze the financial statements of Apple Inc from 2011 to 2013 to determine which year was more profitable, that is, time series analysis. The results could also be useful in performing industrial analysis which involves comparing one company’s performance to another in order to determine which one is doing better. Measure the ability of