SOLUTION: 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:

Question 559199: 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) Ho: u ≥ 53 and Ha: u <53, a = 0.01
(B) Ho: u ≤ 32 and Ha: u > 32, a = 0.05
(C) Ho: u = 24 and , Ha: u ≠ 24 a = 0.10
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
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) Ho: u ≥ 53 and Ha: u <53, a = 0.01
z = invNorm(0.01) = -2.3263
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(B) Ho: u ≤ 32 and Ha: u > 32, a = 0.05
z = invNorm(0.95) = 1.645
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(C) Ho: u = 24 and , Ha: u ≠ 24 a = 0.10
z< -1.645 or z> +1.645
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Cheers,
Stan H.
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