Question: 9. Refer to Problem 8. (a) For the model in Problem 8, and assuming normality of the Ys, test the hypothesis H0 : 4 =

9. Refer to Problem 8.

(a) For the model in Problem 8, and assuming normality of the Y’s, test the hypothesis H0 : β4 = β5 = β6 = 0 versus H1 : Not all parameters β4, β5, β6 are zero. Use α = 0.05.

(b) Find the p-value for the test in part (a).

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