A clinical trial was conducted to test the effectiveness of a drug for treating insomnia in older subjects. Before treatment, 2020 subjects had a mean wake time of 105.0105.0 min. After treatment, the 2020 subjects had a mean wake time of 81.881.8 min and a standard deviation of 23.323.3 min. Assume that the 2020 sample values appear to be from a normally distributed population and construct a 9090% 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 105.0105.0 min before the treatment? Does the drug appear to be effective? Construct the 9090% confidence interval estimate of the mean wake time for a population with the treatment. nothing minless than
A clinical trial was conducted to test the effectiveness of a drug for treating insomnia in older subjects. Before treatment, 2020 subjects had a mean wake time of 105.0105.0 min. After treatment, the 2020 subjects had a mean wake time of 81.881.8 min and a standard deviation of 23.323.3 min. Assume that the 2020 sample values appear to be from a normally distributed population and construct a 9090% 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 105.0105.0 min before the treatment? Does the drug appear to be effective? Construct the 9090% confidence interval estimate of the mean wake time for a population with the treatment. nothing minless than
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
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A clinical trial was conducted to test the effectiveness of a drug for treating insomnia in older subjects. Before treatment,
normally distributed population and construct a
interval estimate of the mean wake time for a population with drug treatments. What does the result suggest about the mean wake time of
2020
subjects had a mean wake time of
105.0105.0
min. After treatment, the
2020
subjects had a mean wake time of
81.881.8
min and a standard deviation of
23.323.3
min. Assume that the
2020
sample values appear to be from a 9090%
confidence 105.0105.0
min before the treatment? Does the drug appear to be effective?Construct the
9090%
confidence interval estimate of the mean wake time for a population with the treatment.nothing
minless than<muμless than<nothing
min(Round to one decimal place as needed.)
What does the result suggest about the mean wake time of
105.0105.0
min before the treatment? Does the drug appear to be effective?The confidence interval
the mean wake time of
This result suggests that the drug treatment
a significant effect.
▼
includes
does not include
105.0105.0
min before the treatment, so the means before and after the treatment
▼
could be the same.
are different.
▼
does not have
has
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