Section 8.4:

For each of the following problems, use Minitab to compute the test statistic and \(P\)-value as we did in class. You do not need to compute the test statistics by hand.

You should:

1. Print the session window.
2. Annotate the printout with the null and alternative hypotheses.
3. Test the null hypothesis using the \(P\)-value reported by Minitab for the paired \(T\)-test.
4. Test the null hypothesis using the observed \(T\)-value and degrees of freedom reported by Minitab via the critical / rejection region method, i.e. the "Traditional Method". Use the T-table in the appendix of Triola & Triola or this T-table to determine the critical values.
5. State your conclusion in terms of the original claim. Do not just state 'reject' / 'do not reject'.
   • For example, for Problem 8.4.8b, your conclusion should be in terms of the claim that captopril is effective in lowering systolic blood pressure.

For a refresher on how to perform a paired \(T\)-test using Minitab, see this Minitab documentation.

Important: Be sure you choose the correct alternative hypothesis to test the claim in the Options... dialog box.

8b, 9bc, 11a