If we are testing a hypothesis that a sample mean does not differ from a hypothesized value at the 99 percent level of confidence, and we arrive at a z value of 2.59, we would fail to support the hypothesis.

Question

Quizplus · Accepted Answer

A z value of 2.59 corresponds to a p-value of approximately 0.01, which is less than the 1 percent level of significance. Therefore, we reject the null hypothesis and conclude that the sample mean does differ from the hypothesized value at the 99 percent level of confidence.

If We Are Testing a Hypothesis That a Sample Mean