"hypothesis test for a proportion. diltiazem is a commonly prescribed drug for hypertension (merck manual). however, diltiazem causes headache in about 12% of patients using the drug. it is hypothesized that regular exercise might reduce the headaches. if a random sample of 209 patients using diltiazem exercised regularly and only 16 had headaches, classify the following statement as true or false: the proportion of patients with headaches in the sample is significantly lower than the hypothesized proportion, at a significance level of α =0.05. consider what alternative hypothesis you will need and how it will affect the test. "