Refer to Exercise 13.81. Construct a 95% confidence interval for the mean price of all tires that have a 65,000-mile limited tread warranty. Construct a 95% prediction interval for the price of a randomly selected tire that has a 65,000-mile limited tread warranty.
In Exercise 81

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Warranty (thousands of miles) 60 70 75 50 80 55 65 65 70 65 60 65 Price per tire (S) 95 135 94 90 12 70 140 80 92 125 60 155