Question
In: Statistics and Probability
A clinical trial was conducted to test the effectiveness of the drug Zopiclone for treating insomnia...
A clinical trial was conducted to test the effectiveness of the drug Zopiclone for treating insomnia in older subjects. After the treatment with Zopiclone, 16 subjects had a mean wake time of 98.9 minutes and standard deviation of 42.3 minutes.
a. Assume that the 16 sample values appear to be from a normally distributed population, and at α = 0.05, test the claim that after treatment with zopiclone, subjects have a mean wake time of less than 102.8 minutes.
b. Calculate a one – sided 95% confidence interval for the mean wake time. Comparing your results with the hypothesis test, what can you conclude about the drug?
Solutions
orchestra answered 2 years agoRelated Solutions
A clinical trial was conducted to test the effectiveness of the drug Zopiclone for treating insomnia...
A clinical trial was conducted to test the effectiveness
of the drug Zopiclone for treating insomnia in older subjects.
Before treatment with Zopiclone, 16 subjects had a mean wake time
of 102.8 minutes. After treatment with Zopiclone, the 16 subjects
had a mean wake time of 98.9 minutes and a standard deviation of
42.3 minutes.
a. Assume that the 16 samples values appear to be from a
normally distributed population, and test the claim that after
treatment with Zopiclone, subjects...
A clinical trial was conducted to test the effectiveness of the drug Zopiclone for treating insomnia...
A clinical trial was conducted to test the effectiveness
of the drug Zopiclone for treating insomnia in older subjects.
Before treatment with Zopiclone, 16 subjects had a mean wake time
of 102.8 minutes. After treatment with Zopiclone, the 16 subjects
had a mean wake time of 98.9 minutes and a standard deviation of
42.3 minutes. Show Work:
Assume that the 16 samples values appear to be from a normally
distributed population, and test the claim that after treatment
with Zopiclone,...
A clinical trial was conducted to test the effectiveness of the drug Zopiclone for treating insomnia...
A clinical trial was conducted
to test the effectiveness of the drug Zopiclone for treating
insomnia in older subjects. Before treatment with Zopiclone, 16
subjects had a mean wake time of 102.8 minutes. After treatment
with Zopiclone, the 16 subjects had a mean wake time of 98.9
minutes and a standard deviation of 42.3 minutes.
a. Assume that the 16 samples
values appear to be from a normally distributed population, and
test the claim that after treatment with Zopiclone, subjects...
A clinical trial was conducted to test the effectiveness of the drug zopiclone for treating insomnia...
A clinical trial was conducted to test the effectiveness of the
drug zopiclone for treating insomnia in older subjects. Before
treatment with zopiclone, 16 subjects had a mean wake time of 102.8
minutes. After treatment with zopiclone, the 16 subjects had a mean
wake time of 98.9 minutes and a standard deviation of 42.3 minutes.
Assume that the 16 sample values appear to be from a normally
distributed population.
a) Test the claim that after treatment with zopiclone, subjects
have...
A clinical trial was conducted to test the effectiveness of the drug zopiclone for treating insomnia...
A clinical trial was conducted to test the effectiveness of the
drug zopiclone for treating insomnia in older subjects. Before
treatment with zopiclone, 20 subjects had a mean wake time of 103.0
minutes. After treatment with zopiclone, the 20 subjects had a mean
wake time of 74.4 minutes and s standard deviation of 23.3 minutes.
Assume that the 20 sample values appear to be from a normally
distributed population and construct a 99% confidence interval
estimate of the mean wake...
A clinical trial was conducted to test the effectiveness of a drug for treating insomnia in...
A clinical trial was conducted to test the effectiveness of a
drug for treating insomnia in older subjects. Before treatment, 18
subjects had a mean wake time of 103.0 min. After treatment, the
18 subjects had a mean wake time of 78.4 min and a standard
deviation of 20.7 min. Assume that the 18 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...
A clinical trial was conducted to test the effectiveness of a drug for treating insomnia in...
A clinical trial was conducted to test the effectiveness of a
drug for treating insomnia in older subjects. Before treatment, 15
subjects had a mean wake time of 105.0 min. After treatment, the
15 subjects had a mean wake time of 99.7 min and a standard
deviation of 24.3 min. Assume that the 15 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...
A clinical trial was conducted to test the effectiveness of a drug for treating insomnia in...
A clinical trial was conducted to test the effectiveness of a
drug for treating insomnia in older subjects. Before treatment,23
subjects had a mean wake time of 104.0 min. After treatment, the
23 subjects had a mean wake time of 79.5 min and a standard
deviation of 23.92 min. Assume that the 23 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...
A clinical trial was conducted to test the effectiveness of a drug for treating insomnia in...
A clinical trial was conducted to test the effectiveness of a
drug for treating insomnia in older subjects. Before
treatment,
2323
subjects had a mean wake time of
100.0100.0
min. After treatment, the
2323
subjects had a mean wake time of
74.674.6
min and a standard deviation of
20.920.9
min. Assume that the
2323
sample values appear to be from a normally distributed
population and construct a
9999%
confidence interval estimate of the mean wake time for a
population with...
A clinical trial was conducted to test the effectiveness of a drug for treating insomnia in...
A clinical trial was conducted to test the effectiveness of a
drug for treating insomnia in older subjects. Before treatment, 19
subjects had a mean wake time of 103.0 min. After treatment, the
19 subjects had a mean wake time of 76.3 min and a standard
deviation of 23.4 min. Assume that the 19 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...
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