The rejection region for testing at the 0.05 level of significance is: A) |z| 1.96 C) z 1.645 D) z

Question

The rejection region for testing at the 0.05 level of significance is: A) |z| < 1.28 B) |z| > 1.96 C) z > 1.645 D) z < 2.33 E) z < 2.58

Quizplus · Accepted Answer

The rejection region for a two-tailed hypothesis test at the 0.05 level of significance is considered when the alpha level is split between the two tails. The critical value of z for the given level of significance is ±1.96, making the rejection region |z| > 1.96. Therefore, the best choice is (B).

The Rejection Region for Testing at the 0