Exam 20: Multiple Regression

Consider the following to answer the question(s) below: What affects flat panel LCD TV sales? Flat panel LCD televisions are sold through a variety of outlets. Sales figures (number of units) for the popular Sony Bravia were obtained for last quarter from a sample of 30 different stores. Also collected were data on the selling price and amount spent on advertising the Sony Bravia (as a percentage of total advertising expenditure in the previous quarter) at each store. Below are the results. -The calculated F-statistic to determine the overall significance of the estimated multiple regression model is

Consider the following to answer the question(s) below:: In determining the best companies to work for, a number of variables are considered, including size, average annual pay, and turnover rate, etc. Moreover, employee surveys are conducted in order to assess aspects of the organization's culture, such as trust and openness to change. In an attempt to determine what affects turnover rate, a sample of 33 companies was randomly selected and data collected on the average annual bonus and turnover rate (%) for 2008. In addition, a questionnaire was administered to the employees of each company to arrive at a trust index (measured on a scale of 0 -100). Below are the multiple regression results. -The calculated F-statistic to determine the overall significance of the estimated multiple regression model is