A clinical trial was conducted to test the effectiveness of the drug Zopiclone for treating insomnia...

A clinical trial was conducted to test the effectiveness of the drug Zopiclone for treating insomnia in older subjects. After the treatment with Zopiclone, 16 subjects had a mean wake time of 98.9 minutes and standard deviation of 42.3 minutes.

a. Assume that the 16 sample values appear to be from a normally distributed population, and at α = 0.05, test the claim that after treatment with zopiclone, subjects have a mean wake time of less than 102.8 minutes.

b. Calculate a one – sided 95% confidence interval for the mean wake time. Comparing your results with the hypothesis test, what can you conclude about the drug?

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orchestra answered 1 year ago

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