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

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

Construct the 95% confidence interval estimate of the mean number of migraine attacks for those given a sham treatment.

Compared to confidence intervals. What do this in results suggest about the effectiveness of acupuncture?

Statistics and Probability, Statistics

  • Category:- Statistics and Probability
  • Reference No.:- M91002542

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