Question
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 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 is pain relief within 30 minutes. The data are shown here.
Pain Relief | No Pain Relief | |
New medication | 44 | 76 |
Placebo | 21 | 99 |
Follow the hypothesis testing steps:
1. Set up hypotheses and determine level of significance
2. Select the appropriate test statistic. Write the formula you choose.
3. Set up decision rule.
4. Compute the test statistic.
5.Interpretthe result.
Is there a significant difference in the proportions of patients reporting pain relief? Run the test at a 5% level of significance.
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