Bio Stats

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 and the outcome in pain relief within 30 minutes. The data are shown below:

Pain relief No pain relief

New Medication 44 76

Placebo 21 99

Is there a significant difference in the proportions of patients reporting pain relief? Run the test at a 5% level of significance.