and for the fixed null hypothesis Ho: Mo, let the test statistic = X - μo have a standard normal distribution when Ho is true. Give the significance level for each of the following situations: 1. The rejection region is {ê> 1.88} and Hai μ> μo : 2. The rejection region is {< -2.75} and H₁ μ< μo 3. The rejection region is {> 2.88 or < -2.88} and H₁ μμo :

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