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 103.0min. After treatment, the 18 subjects had a mean waketime of 93.2min and a standard deviation of 21.5min. Assume that the 18 sample values appear to be from a normallydistributed population and construct a 99% confidence interval estimate of the mean wake time for a population withdrug treatments. What does the result suggest about the mean wake time of 103.0 min before the treatment? Does thedrug appear to be effective?Construct the 99% confidence interval estimate of the mean wake time for a population with the treatment.min<�<min(Round to one decimal place as needed.) 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 waketime of 93.2 min and a standard deviation of 21.5 min. Assume that the 18 sample values appear to be from a normallydistributed population and construct a 99% confidence interval estimate of the mean wake time for a population withdrug treatments. What does the result suggest about the mean wake time of 103.0 min before the treatment? Does thedrug appear to be effective?Construct the 99% confidence interval estimate of the mean wake time for a population with the treatment.min<μ< min(Round to one decimal place as needed.)

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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 103.0min. After treatment, the 18 subjects had a mean wake time of 93.2min and a standard deviation of 21.5min. Assume that the 18 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 103.0 min before the treatment? Does the drug appear to be effective?

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 103.0min. After treatment, the 18 subjects had a mean wake time of 93.2min and a standard deviation of 21.5min. Assume that the 18 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 103.0 min before the treatment? Does the drug appear to be effective?

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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