Week5Practice2-Experimentalstudy.docx

    Practice 2 – Experimental study

    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?  

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