MINITAB is used to conduct a t-test for the null hypothesis H,,: p = 1,000 versus the alternative hypothesis Ha: p > 1,000 based on a sample of 17 observations. The software's output is shown below.

a. What assumptions are necessary for the validity of this procedure?

b. Interpret the results of the test.

c. Suppose the alternative hypothesis had been the two-tailed Ha: p # 1,000. If the t statistic were unchanged, then what would the p-value be for this test'? Interpret the p-value for the two-tailed test.

Applying the Concepts