(Solution)-BA 215 Week 7 Assignment


Solution download


Week 7 Assignment Question 1 Assume you have noted the following prices for paperback books and the number of pages that each book contains. Develop a least-squares estimated regression line. .grantham.edu/at/ba215/2015/wk-7-assignment-image-1.png" src="file:///C:/Users/Pals/AppData/Local/Temp/OICE_1F393328-863D-4051-97DE-559DD5194BCB.0/msohtmlclip1/01/clip_image001.png"> 1. Compute the coefficient of determination and explain its meaning. 2. Compute the correlation coefficient between the price and the number of pages. Test to see if x and y are related. Use ? = 0.10. Question 2 The following data represent a company's yearly sales volume and its advertising expenditure over a period of 8 years. .grantham.edu/at/ba215/2015/wk-7-assignment-image-2.png" src="file:///C:/Users/Pals/AppData/Local/Temp/OICE_1F393328-863D-4051-97DE-559DD5194BCB.0/msohtmlclip1/01/clip_image002.png"> 1. Develop a scatter diagram of sales versus advertising and explain what it shows regarding the relationship between sales and advertising. 2. Use the method of least squares to compute an estimated regression line between sales and advertising. 3. If the company's advertising expenditure is $400,000, what are the predicted sales? Give the answer in dollars. 4. What does the slope of the estimated regression line indicate?


Solution ID:10086588 | Question answered on 16-Oct-2016

Price : $31

Order New Solution. Quick Turnaround

Click on the button below in order to Order for a New, Original and High-Quality Essay Solutions. New orders are original solutions and precise to your writing instruction requirements. Place a New Order using the button below.

Order Now