A clinical trial was conducted to test the effectiveness of a drug for treating insomnia in older subjects. Before treatment, 21 subjects had a mean wake time of 102.0 min. After treatment, the 21 subjects had a mean wake time of 97.5 min and a standard deviation of 23.9 min. Assume that the 21 sample values appear to be from a normally distributed population and construct a 90% 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 102.0 min before the treatment? Does the drug appear to be effective? Construct the 90% confidence interval estimate of the mean wake time for a population with the treatment. min < µ< min (Round to one decimal place as needed.) What does the result suggest about the mean wake time of 102.0 min before the treatment? Does the drug appear to be effective? The confidence interval V the mean wake time of 102.0 min before the treatment, so the means before and after the treatment This result suggests that the drug treatment a significant effect.

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Please help me find  [ ]min<u<[ ] min  

The confidence interval (includes/does not include) the man wake time of 102.0min before the treatment, so the mean before and after the treatment ( are different/ could be the same) This result suggests that the drug treatment (does not have/ has) a significatn effect.

A clinical trial was conducted to test the effectiveness of a drug for treating insomnia in older subjects. Before treatment, 21 subjects had a
mean wake time of 102.0 min. After treatment, the 21 subjects had a mean wake time of 97.5 min and a standard deviation of 23.9 min.
Assume that the 21 sample values appear to be from a normally distributed population and construct a 90% 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 102.0 min before the
treatment? Does the drug appear to be effective?
Construct the 90% confidence interval estimate of the mean wake time for a population with the treatment.
min < µ< min
(Round to one decimal place as needed.)
What does the result suggest about the mean wake time of 102.0 min before the treatment? Does the drug appear to be effective?
The confidence interval
V the mean wake time of 102.0 min before the treatment, so the means before and after the
treatment
This result suggests that the drug treatment
a significant effect.
Transcribed Image Text:A clinical trial was conducted to test the effectiveness of a drug for treating insomnia in older subjects. Before treatment, 21 subjects had a mean wake time of 102.0 min. After treatment, the 21 subjects had a mean wake time of 97.5 min and a standard deviation of 23.9 min. Assume that the 21 sample values appear to be from a normally distributed population and construct a 90% 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 102.0 min before the treatment? Does the drug appear to be effective? Construct the 90% confidence interval estimate of the mean wake time for a population with the treatment. min < µ< min (Round to one decimal place as needed.) What does the result suggest about the mean wake time of 102.0 min before the treatment? Does the drug appear to be effective? The confidence interval V the mean wake time of 102.0 min before the treatment, so the means before and after the treatment This result suggests that the drug treatment a significant effect.
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