Exercise 11-6 presented gasoline mileage performance for 21 cars, along with information

Chapter 11, Problem 11-44

(choose chapter or problem)

Exercise 11-6 presented gasoline mileage performance for 21 cars, along with information about the engine displacement. Find a 95% confidence interval on each of the following: (a) Slope (b) Intercept (c) Mean highway gasoline mileage when the engine displacement is x 150 in3 (d) Construct a 95% prediction interval on highway gasoline mileage when the engine displacement is x 150 in3 .

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