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)H?: = 40 and Ha: ≠ 40, \(\alpha \) = 0.01

(B)H?: < 25 and, Ha: > 25, \(\alpha \) = 0.10

(C)H?: > 89 and Ha: < 89, \(\alpha \) = 0.05