A clinical trial is conducted comparing a new pain reliever for arthritis to a placebo. Participants are randomly assigned to receive the new medication or a placebo. The outcome is pain relief within...

A clinical trial is conducted comparing a new pain reliever for arthritis to a placebo. Participants are randomly assigned to receive the new medication or a placebo. The outcome is pain relief within 30 minutes.  Generate a 95% confidence interval for the proportion of patients on the new medication who report paint relief.

Generate a 95% confidence interval for the difference in proportions of patients who report pain relief. Pain Relief       No Pain Relief

New Medication 44   76

Placebo 21 99