Question 187070
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: µ = 25 and Ha: µ ≠ 25, α = 0.10
Critical Values: z = +/-1.645
Critical Region: z < -1.645 or  z > +1.645
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b. Ho: µ &#8804; 32 and Ha: µ >32, &#945; = 0.01
Critical Value: z = 2.326
Critical Region: z >= 2.326
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c. H0: µ &#8805;13 and Ha: µ < 13, &#945; = 0.05 
Critical Value: z = -1.645
Critical Region: z < -1.645
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Cheers,
Stan H.