Mathematics, 27.02.2020 00:15 jay13212
In a study designed to test the effectiveness of acupuncture for treating migraine, 142 subjects
were treated with acupuncture. The numbers of migraine attacks for the treatment group had a
mean of 1.8 and a standard deviation of 1.4. Construct a 95% confidence interval estimate of the mean number of migraine attacks for all people treated with acupuncture.
1.6
1.7
1.5
1.3
Answers: 3
![= \bar {x} \pm1.96 ]\times\frac{8}{\sqrt{m} } \\\\= 1.8 \pm 1.96 \times \frac{1.4}{\sqrt{142} } \\\\= 1.56](/tpl/images/0525/8772/ebb0b.png)
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In a study designed to test the effectiveness of acupuncture for treating migraine, 142 subjects
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