Suppose, in testing a hypothesis about a mean, the Z test statistic is computed to be 2.04.The null hypothesis should be rejected if the chosen level of significance is 0.01 and a two-tail test is used.

Question

Quizplus · Accepted Answer

With a two-tail test at a significance level of 0.01, the critical Z values are approximately ±2.58. Since the computed Z test statistic of 2.04 is less than 2.58, the null hypothesis should not be rejected at this level of significance.

Suppose, in Testing a Hypothesis About a Mean, the Z