Let the Test Statistic Z Have a Standard Normal Distribution $H _ { 0 }$

question 74

Essay

Let the test statistic Z have a standard normal distribution when $H _ { 0 }$ is true. Give the significance level for each of the following situations.
a. $H _ { ± } : \mu > \mu _ { 1 } , \text { rejection region } z \geq 2.602$ b. $H _ { \pm } : \mu < \mu _ { 0 } , \text { rejection region } z \leq - 2.069$ c. $H _ { \pm } : \mu = \mu _ { 0 } \text {, rejection region } z \geq 2.042 \text { or } z \leq 2.042$

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