# A study of dental pain (http://www.endoexperience.com/documents/PIIS0099239911010375.pdf) found that patients given ibuprofen on the 1st day after surgery had a mean pain rating of 62.7. Assume that this is the population mean pain rating of all dental patients given ibuprofen on the 1st day after surgery.

#### A study of dental pain (http://www.endoexperience.com/documents/PIIS0099239911010375.pdf) found that patients given ibuprofen on the 1st day after surgery had a mean pain rating of 62.7. Assume that this is the population mean pain rating of all dental patients given ibuprofen on the 1st day after surgery.

Claim: 2-pain medications are better than one. Giving both ibuprofen and acetaminophen would cause patients to have a mean pain rating on the first day after surgery <62.7.

Perform all 4 steps of the hypothesis test of the claim, given that the same dental pain study with the link above collected a sample of 35 dental patients and gave them both ibuprofen and acetaminophen through the first day after surgery.

The mean pain rating of the 35 patients=54.6

Standard deviation= 43.4.

Use the 0.05 significance level.

Clearly show Step 1 to Step 4

Is ibuprofen alone significantly different (in the statistical sense) in relieving pain than ibuprofen and acetaminophen together?
Which medication(s) would you rather take for dental pain given these results?