10. Hypothesis Testing for Two Samples / Two Proportions / Problem 9
Problem 9
A new medication, PainAway, is being tested for its side effects. In a clinical study, out of patients treated with PainAway reported headaches, while out of patients in the placebo group reported headaches. At the significance level, use an appropriate confidence interval to identify if there is evidence of a difference in the rate of headaches between the PainAway and placebo groups.