Question 493421: 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 >36 and Ha: µ <36, a = 0.5
b. H0: µ = 80 and Ha: µ #80, a = 0.10
c. H0: µ < 20 and Ha: µ >20, a = 0.01
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: µ >36 and Ha: µ <36, a = 0.5
left-tail test with critical value z = -1.645
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b. H0: µ = 80 and Ha: µ not equal to 80, a = 0.10
2-tail test with cv's z = +-1.645
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c. H0: µ <= 20 and Ha: µ >20, a = 0.01
right-tail test with critical value z = 2.3263
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Cheers,
Stan H.
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