clinical Test. In clinical tests of the drug Lipitor, 863 patients were treated with the drug and 19 of them experienced flu symptoms (based on data from Parke-Davis).

Test the claim that the percentage of treated patients with flu symptoms is greater than the 1.9% rate for patients not given treatments.

use a 0.05 significance level to conduct a hypothesis test using the four-step procedure described in the text. Be sure to state your conclusion.