Following are the age and price data for Corvettes from Exercise 4.59:

Use the technology of your choice to perform the following tasks.

a. Decide whether finding a regression line for the data is reasonable. If so, then also do parts (b)–(d).

b. Obtain the coefficient of determination.

c. Determine the percentage of variation in the observed values of the response variable explained by the regression, and interpret your answer.

d. State how useful the regression equation appears to be for making predictions.The data from Exercise 4.70 for number of birdies during a tournament and the final score for 63 women golfers are on the WeissStats site.

Exercise 4.59

The data from Exercise 4.75 for average high and low temperatures in January for a random sample of 50 cities are on the WeissStats site.    

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