A clinical trial was conducted to test the effectiveness of a drug for treating insomnia in...
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A clinical trial was conducted to test the effectiveness of a drug for treating insomnia in older subjects. Before treatment, 18 subjects had a mean wake time of 104.0 min. After treatment, the 18 subjects had a mean wake time of 94.9 min and a standard deviation of 23.4 min. Assume that the 18 sample values appear to be from a normally distributed population and construct a 99% confidence interval estimate of the mean wake time for a population with drug treatments. What does the result suggest about the mean wake time of 104.0 min before the treatment? Does the drug appear to beeffective? Construct the 99% confidence interval estimate of the mean wake time for a population with the treatment. min <μ< min (Round to one decimal place as needed.) A clinical trial was conducted to test the effectiveness of a drug for treating insomnia in older subjects. Before treatment, 18 subjects had a mean wake time of 104.0 min. After treatment, the 18 subjects had a mean wake time of 94.9 min and a standard deviation of 23.4 min. Assume that the 18 sample values appear to be from a normally distributed population and construct a 99% confidence interval estimate of the mean wake time for a population with drug treatments. What does the result suggest about the mean wake time of 104.0 min before the treatment? Does the drug appear to beeffective? Construct the 99% confidence interval estimate of the mean wake time for a population with the treatment. min <μ< min (Round to one decimal place as needed.)
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