A clinical trial was conducted to test the effectiveness of a drug for treating insomnia in older subjects. Before treatment, 24 subjects had a mean wake time of 103.0 min. After treatment, the 24 subjects ha mean wake time'of 93.4 min and a standard deviation of 24.2 min. Assume that the 24 sample values appear to be from a normally distributed population and construct a 99% confidence interval estimate 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 99% confidence interval estimate of the mean wake time for a population with the treatment min < u< min (Round to one decimal place as needed.) What does the result suggest about the mean wake time of 103.0 min before the treatment? Does the drug appear to be effective? V This result suggests that the drug The confidence interval v the mean wake time of 103.0 min before the treatment, so the means before and after the treatment treatment a significant effect.

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A clinical trial was conducted to test the effectiveness of a drug for treating insomnia in older subjects. Before treatment, 24 subjects had a mean wake time of 103.0 min. After treatment, the 24 subjects had a
mean wake time of 93.4 min and a standard deviation of 24.2 min. Assume that the 24 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 103.0 min before the treatment? Does the drug appear to be effective?
Construct the 99% confidence interval estimate of the mean wake time for a population with the treatment.
min < u< min
(Round to one decimal place as needed.)
What does the result suggest about the mean wake time of 103.0 min before the treatment? Does the drug appear to be effective?
This result suggests that the drug
The confidence interval
V the mean wake time of 103.0 min before the treatment, so the means before and after the treatment
treatment
a significant effect.
Transcribed Image Text:Question Help A clinical trial was conducted to test the effectiveness of a drug for treating insomnia in older subjects. Before treatment, 24 subjects had a mean wake time of 103.0 min. After treatment, the 24 subjects had a mean wake time of 93.4 min and a standard deviation of 24.2 min. Assume that the 24 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 103.0 min before the treatment? Does the drug appear to be effective? Construct the 99% confidence interval estimate of the mean wake time for a population with the treatment. min < u< min (Round to one decimal place as needed.) What does the result suggest about the mean wake time of 103.0 min before the treatment? Does the drug appear to be effective? This result suggests that the drug The confidence interval V the mean wake time of 103.0 min before the treatment, so the means before and after the treatment treatment a significant effect.
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