Determine the critical region and critical values for z that would be used to te

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) Ho:u line underneath< 83 and Ho: u > 83, a=0.01
B) Ho:u line underneath> 92 and Ho:u < 92, a=0.05
C)Ho:u=53 and Ho:u = 53, a=0.10

Explanation / Answer

(a) Given a=0.01, |Z(0.01)|=2.33 (check standard normal table) The critical region : Z>2.33 The critical value is z=2.33 -------------------------------------------------------------------------------------- (b) Given a=0.05, |Z(0.05)|=1.645 (check standard normal table) The critical region: Z

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