Question

A. Let X1,X2,...,X25 be a random sample of size 25 drawn from a normal distribution with

unknown mean µ and variance

2 = 100. It is desired to test the null hypothesis µ = 4 against

the alternative µ = 6. What is the power at µ = 6 of the test with rejection rule: reject µ = 4

if ∑ ≥ 25

=1

?​

Answer 1

Answer:

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