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 582457: 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: � ≤ 24 and Ha: � >24, α = 0.01
b. H0: � =61 and Ha: � ≠ 61, α = 0.05
c. H0: � ≥27 and Ha: � <27, α = 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. H0: � ≤ 24 and Ha: � >24, α = 0.01
Right-tail test: CV = invNorm(0.99) = 2.3263
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b. H0: � =61 and Ha: � ≠ 61, α = 0.05
Two-tail test: CV = +-1.96
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c. H0: � ≥27 and Ha: � <27, α = 0.10
Left-tail test: invNorm(0.10) = -1.2816
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Cheers,
Stan H.
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