Question: Consider a population N( =?, = 4). Set sample size n = 20 for a test H0 : = 20 vs Ha : > 20

Consider a population N( =?, = 4). Set sample size n = 20 for a test H0 : = 20 vs Ha : > 20 under = 2%. If the true under Ha is 1 = 22, find the power of the Z test.

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