In a hypothesis test with hypotheses

and

, a random sample of61elements selected from the population produced a mean of47.1. Assume that

7.4, and that the test is to be made at the 2.5% significance level.

What is the critical value ofz?

1.96

-1.65

1.65

-1.96

What is the value of the test statistic,z, rounded to three decimal places?

Enter you answer; What is the value of the test statistic, z?

What is thep-value for this hypothesis test, rounded to four decimal places?

Enter you answer; What is the p-value for this hypothesis test?

Should you reject or fail to reject the null hypothesis in this test?

Choose your answer; Should you reject or fail to reject the null hypothesis in this test?

Reject.Fail to reject.