A clinical trial was conducted to test the effectiveness of a drug for treating insomnia in older subjects. Before treatment, 13 subjects had a mean wake time of 103.0 min. After treatment, the 13 subjects had a mean wake time of 97.9 min and a standard deviation of 20.7 min. Assume that the 13 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? G Construct the 95% confidence interval estimate of the mean wake time for a population with the treatment. min<µ

Calculus For The Life Sciences
2nd Edition
ISBN:9780321964038
Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Chapter13: Probability And Calculus
Section13.2: Expected Value And Variance Of Continuous Random Variables
Problem 10E
icon
Related questions
Question

What does the result suggest about the mean wake time of 103.0 min before a treatment? Does the drug appear to be effective?

The confidence interval include or does not include the mean wake time of 103.0 min before the treatment, so the means before and after the treatment are same or are different. This result suggests that the drug treatment has or has not an effect. 

A clinical trial was conducted to test the effectiveness of a drug for treating insomnia in older subjects. Before treatment, 13 subjects had a mean wake time of 103.0
min. After treatment, the 13 ubjects had a mean wake time of 97.9 min and a standard deviation of 20.7 min. Assume that the 13 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?
C
Construct the 95% confidence interval estimate of the mean wake time for a population with the treatment.
min<μ< min
(Round to one decimal place as needed.)
Transcribed Image Text:A clinical trial was conducted to test the effectiveness of a drug for treating insomnia in older subjects. Before treatment, 13 subjects had a mean wake time of 103.0 min. After treatment, the 13 ubjects had a mean wake time of 97.9 min and a standard deviation of 20.7 min. Assume that the 13 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? C Construct the 95% confidence interval estimate of the mean wake time for a population with the treatment. min<μ< min (Round to one decimal place as needed.)
Expert Solution
steps

Step by step

Solved in 4 steps with 2 images

Blurred answer
Recommended textbooks for you
Calculus For The Life Sciences
Calculus For The Life Sciences
Calculus
ISBN:
9780321964038
Author:
GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:
Pearson Addison Wesley,
Glencoe Algebra 1, Student Edition, 9780079039897…
Glencoe Algebra 1, Student Edition, 9780079039897…
Algebra
ISBN:
9780079039897
Author:
Carter
Publisher:
McGraw Hill