Chapter 14.4, Problem 145E

In Exercises 14.144–14.149, we repeat data from exercises in Section 14.2. For each exercise here,

1. a. obtain the linear correlation coefficient.
2. b. interpret the value of r in terms of the linear relationship between the two variables in question.
3. c. discuss the graphical interpretation of the value of r and verify that it is consistent with the graph you obtained in the corresponding exercise in Section 14.2.
4. d. square r and compare the result with the value of the coefficient of determination you obtained in the corresponding exercise in Section 14.3.

14.145 Corvette Prices. Following are the age and price data for Corvettes from Exercises 14.59 and 14.99.