PROBLEM 2E

Let X1,X2, . . . ,Xn be a random sample from N(0, σ2).

(a) Show that C = {(x1, x2, . . . , xn) : is a best critical region for testing H0: σ2 = 4 against H1: σ2= 16.

(b) If n = 15, find the value of c so that α = 0.05. Hint:Recall that

(c) If n = 15 and c is the value found in part (b), find the approximate value of σ2 = 16).

Psychology 2: Best Study Techniques for College Students Questions to be answered: Which techniques actually help students Which techniques actually cause students to waste time Key point: Education is meant to teach students info that would last them years instead of a few days. It is easy for students to think personal...