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Acupuncture for Migraines In a study designed to test the effectiveness of acupuncture for treating migraine, 142 subjects were treated with acupuncture and 80 subjects were given a sham treatment. The numbers of migraine attacks for the acupuncture treatment group had a mean of 1.8 and a standard deviation of 1.4. The numbers of migraine attacks for the sham treatment group had a mean of 1.6 and a standard deviation of 1.2.

a) Construct the 95% confidence interval estimate of the mean number of migraine attacks for those treated with acupuncture.

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Statistics and Probability, Statistics

Category:- Statistics and Probability
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