A clinical trial was conducted to test the effectiveness of a drug for treating insomnia in older subjects. Before treatment, 17 subjects had a mean wake time of 103.0 min. After treatment, the 17 subjects had a mean wake time of 97.9 min and a standard deviation of 23.6 min. Assume that the 17 sample values appear to be from a normally distributed population and construct a 95% 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 103.0 min before the treatment? Does the drug appear to be effective? Construct the 95% confidence interval estimate of the mean wake time for a population with the treatment. min < u< (Round to one decimal place as needed.) min

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A clinical trial was conducted to test the effectiveness of a drug for treating insomnia in older subjects. Before treatment, 17
subjects had a mean wake time of 103.0 min. After treatment, the 17 subjects had a mean wake time of 97.9 min and a
standard deviation of 23.6 min. Assume that the 17 sample values appear to be from a normally distributed population and
construct a 95% 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 103.0 min before the treatment? Does the drug appear to be effective?
Construct the 95% confidence interval estimate of the mean wake time for a population with the treatment.
min < µ<
min
(Round to one decimal place as needed.)
Transcribed Image Text:A clinical trial was conducted to test the effectiveness of a drug for treating insomnia in older subjects. Before treatment, 17 subjects had a mean wake time of 103.0 min. After treatment, the 17 subjects had a mean wake time of 97.9 min and a standard deviation of 23.6 min. Assume that the 17 sample values appear to be from a normally distributed population and construct a 95% 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 103.0 min before the treatment? Does the drug appear to be effective? Construct the 95% 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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