A crossover trial is a type of experiment used to compare twodrugs. Subjects take one drug for a period of time, then switch tothe other. The responses of the subjects are then compared usingmatched-pair methods. In an experiment to compare two painrelievers, seven subjects took one pain reliever for two weeks,then switched to the other. They rated their pain level from 1 to10, with larger numbers representing higher levels of pain. Can youconclude that the main pain level is less with drug B? Use α =0.05.
| Subject | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
| Drug A | 6 | 3 | 4 | 5 | 7 | 1 | 4 |
| Drug B | 5 | 1 | 5 | 5 | 5 | 2 | 2 |
a. State whether the test is:
i) a two-sample t-test (independent samples)
ii) a matched pairs
iii) a two sample proportion test
b. Write H0 and H1
c. Using Minitab, list the test statistic the p-value yourconclusion: reject H0 or do not reject H0. Note: if α is notprovided, use a 0.05 significance level
d.  Write a sentence that explains your conclusion incontext with the claim. Include the significance level and p-valuein this sentence.
e.  Copy and paste the relevant Minitab output intothe document. Answers alone are sufficient, you do not need to copythe exercise into the document.
