Question: Fuel economy, part III. Consider again the data in Exercise 17 about the gas mileage and weights of cars. a) Create a 95% confidence interval

Fuel economy, part III. Consider again the data in Exercise 17 about the gas mileage and weights of cars.

a) Create a 95% confidence interval for the average fuel efficiency among cars weighing 2500 pounds, and explain what your interval means.

b) Create a 95% prediction interval for the gas mileage you might get driving your new 3450-pound SUV, and explain what that interval means.

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