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 462373: 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 ≥ 81 and Ha: u < 81 ,  = 0.05
(B) Ho:u = 45 and Ha: u not equal 45,  = 0.10
(C) Ho:u ≤ 88 and Ha: u >88,  = 0.01
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Answer by edjones(8007) (Show Source): You can put this solution on YOUR website!
A) below -1.64
.
B)outside -1.64 and 1.64
.
C)above 2.33
.
Ed
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