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[Solution Library] Determine the critical region and critical values for z that would be used to test the null hypothesis at the given level of significance, as

Question: Determine the critical region and critical values for z that would be used to test the null hypothesis at the given level of significance, as described in each of the following:

(A)H₀:𝝁 = 40 and Ha: 𝝁 ≠ 40, \(\alpha \) = 0.01

(B)H₀:𝝁 < 25 and, Ha: 𝝁 > 25, \(\alpha \) = 0.10

(C)H₀:𝝁 > 89 and Ha: 𝝁 < 89, \(\alpha \) = 0.05


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