A clinical trial is conducted comparing a new pain reliever for arthritis to a placebo. Participants are randomly ...

     5. A clinical trial is conducted comparing a new pain reliever   for arthritis to a placebo. Participants are randomly assigned to receive the   new treatment or a placebo. The outcome is pain relief within 30 minutes. The   data are shown below.        Pain Relief   No Pain Relief   New   Medication 44 76   Placebo 21   99         a. Generate   a 95% confidence interval for the proportion of patients on the new   medication who report pain relief   b. Generate   a 95% confidence interval for the difference in proportions of patients who   report pain relief.