Question: 10. Refer to Problem 7 part (c). Find a 95% confidence interval for E(Y ) and a 95% prediction interval for Y at X2 =

10. Refer to Problem 7 part (c). Find a 95% confidence interval for E(Y ) and a 95%

prediction interval for Y at X2 = 20, X3 = 30, X4 = 90, and X5 = 2.0, assuming normality of the Y’s.

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