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 104.0 min. After treatment, the 21 subjects had a mean wake time of 78.3 min and a standard deviation of 20.3 min. Assume that the 21 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 drug treatments. What does the result suggest about the mean wake time of 104.0 min before the treatment? Does the drug appear to be effective? Construct the 99% confidence interval estimate of the mean wake time for a population with the treatment. O min < u
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 104.0 min. After treatment, the 21 subjects had a mean wake time of 78.3 min and a standard deviation of 20.3 min. Assume that the 21 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 drug treatments. What does the result suggest about the mean wake time of 104.0 min before the treatment? Does the drug appear to be effective? Construct the 99% confidence interval estimate of the mean wake time for a population with the treatment. O min < u
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question
![**Clinical Trial on Drug Effectiveness for Insomnia in Older Subjects**
A clinical trial was conducted to assess the effectiveness of a drug intended for treating insomnia in older subjects. Below are the results and analysis:
**Study Details:**
- **Sample Size:** 21 subjects
- **Mean Wake Time Before Treatment:** 104.0 minutes
- **Mean Wake Time After Treatment:** 78.3 minutes
- **Standard Deviation:** 20.3 minutes
**Objective:**
Construct a 99% confidence interval estimate of the mean wake time for a population with the drug treatment.
**Instruction:**
Calculate the 99% confidence interval for the mean wake time and round to one decimal place.
**Analysis Question:**
What do these results suggest about the mean wake time of 104.0 minutes before the treatment? Does the drug appear to be effective?
**Conclusion:**
- The calculation of the confidence interval will help determine if the mean wake time after treatment significantly differs from the mean of 104.0 minutes before the treatment.
- A reduction in the mean wake time suggests the drug treatment is effective.
**Interactive Section:**
Fill in the confidence interval and interpret the result:
- [ ] min < μ < [ ] min
**Question:**
What does the confidence interval suggest about the mean wake time of 104.0 minutes before the treatment?
- The confidence interval [ ] the mean wake time of 104.0 minutes before the treatment, indicating whether the means before and after the treatment differ.
- This result suggests that the drug treatment [].
*Note:* Interactive elements allow users to input and evaluate their own answers based on the trial data.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fa951095b-8fe2-4ec9-81e0-5c7669f4ee38%2Fe3c23872-0939-41c4-ae67-eb3022cc29b1%2F1ttjty6_processed.jpeg&w=3840&q=75)
Transcribed Image Text:**Clinical Trial on Drug Effectiveness for Insomnia in Older Subjects**
A clinical trial was conducted to assess the effectiveness of a drug intended for treating insomnia in older subjects. Below are the results and analysis:
**Study Details:**
- **Sample Size:** 21 subjects
- **Mean Wake Time Before Treatment:** 104.0 minutes
- **Mean Wake Time After Treatment:** 78.3 minutes
- **Standard Deviation:** 20.3 minutes
**Objective:**
Construct a 99% confidence interval estimate of the mean wake time for a population with the drug treatment.
**Instruction:**
Calculate the 99% confidence interval for the mean wake time and round to one decimal place.
**Analysis Question:**
What do these results suggest about the mean wake time of 104.0 minutes before the treatment? Does the drug appear to be effective?
**Conclusion:**
- The calculation of the confidence interval will help determine if the mean wake time after treatment significantly differs from the mean of 104.0 minutes before the treatment.
- A reduction in the mean wake time suggests the drug treatment is effective.
**Interactive Section:**
Fill in the confidence interval and interpret the result:
- [ ] min < μ < [ ] min
**Question:**
What does the confidence interval suggest about the mean wake time of 104.0 minutes before the treatment?
- The confidence interval [ ] the mean wake time of 104.0 minutes before the treatment, indicating whether the means before and after the treatment differ.
- This result suggests that the drug treatment [].
*Note:* Interactive elements allow users to input and evaluate their own answers based on the trial data.
Expert Solution

This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution!
Trending now
This is a popular solution!
Step by step
Solved in 3 steps
