Costco Sells Paperback Books in Their Retail Stores and Wants

Multiple Choice

Costco sells paperback books in their retail stores and wants to examine the relationship between the prices and sales. The price of a particular novel was adjusted each week and the weekly sales are in the following table. Management would like to use a simple linear regression model that uses prices to predict sales. The coefficient of determination for this sample is equal to ________.

A) 0.273
B) 0.311
C) 0.392
D) 0.450