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In a study of the effectiveness of a new pain killer, 46 out of 821 patients tested reported experiencing side effects.Use a a = 0.01

In a study of the effectiveness of a new pain killer, 46 out of 821 patients tested reported experiencing side effects.Use a a = 0.01 significance level to determine if the proportion who side effects from this drug is lower than the 7.8% rate of side effects for the older version of this medication.

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