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Question: an experiment on the side effects of pain relievers assigned...

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An experiment on the side effects of pain relievers assigned arthritis patients to take one of several over-the-counter pain medications. Of the 455 patients who took one brand of pain reliever, 23 suffered some "adverse symptom." Does the experiment provide strong evidence that fewer than 9% of patients who take this medication have adverse symptoms? a) what is the test statistic? b) what is the p-value?

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