Question: Exercise 11-5 presented data on y steam usage and x monthly average temperature (a) Find a 99% confidence interval for 1. (b) Find a 99%

Exercise 11-5 presented data on y steam usage and x monthly average temperature

(a) Find a 99% confidence interval for 1.

(b) Find a 99% confidence interval for 0.

(c) Find a 95% confidence interval on mean steam usage when the average temperature is .

(d) Find a 95% prediction interval on steam usage when temperature is . Explain why this interval is wider than the interval in part (c).

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