clinical trial was conducted to test the effectiveness of a drug for treating insomnia in older subjects. Before treatment. 25 subjects had a mean wake time of 103.0 min. After treatment, the 25 subjects had a mean wake time of 96.1 min and a standard deviation of 20.5 min. Assume that the 25 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
clinical trial was conducted to test the effectiveness of a drug for treating insomnia in older subjects. Before treatment. 25 subjects had a mean wake time of 103.0 min. After treatment, the 25 subjects had a mean wake time of 96.1 min and a standard deviation of 20.5 min. Assume that the 25 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
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter4: Equations Of Linear Functions
Section: Chapter Questions
Problem 8SGR
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A clinical trial was conducted to test the effectiveness of a drug for treating insomnia in older subjects. Before
treatment. 25 subjects had a mean wake time of 103.0 min. After treatment, the 25 subjects had a mean wake time of
96.1 min and a standard deviation of 20.5 min. Assume that the 25 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?
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Construct the 95% confidence interval estimate of the mean wake time for a population with the treatment.
min
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