Question: 12.41 Refer to Exercise 12.6. a. Estimate the average value of y when x = 1, using a 90% confidence interval. b. Find a 90%

12.41 Refer to Exercise 12.6.

a. Estimate the average value of y when x = 1, using a 90% confidence interval.

b. Find a 90% prediction interval for some value of y to be observed in the future when x = 1.

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