A researcher obtains z = 2.04 for a one-sample z test.What is the decision for this test at a .05 level of significance?
A)to reject the null hypothesis
B)to retain the null hypothesis
C)It depends on whether the test is one-tailed or two-tailed.
D)There is not enough information to make a decision.

Question

Quizplus · Accepted Answer

A z score of 2.04 gives a p-value of approximately .02, which is less than the .05 level of significance. Therefore, we reject the null hypothesis.

A Researcher Obtains Z = 2