Answered: a clinical trial was conducted to test…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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a clinical trial was conducted to test the effectiveness of a drug for treating insomnia in older subjects. Before treatment, 15subjects had a mean wake time of 104.0 min. After treatment, the 15 subjects had a mean wake time of 79.7 min and a standard deviation of 20.8 min. Assume that the 15 sample values appear to be from a normally distributed population and construct a 90% 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 90%confidence interval estimate of the mean wake time for a population with the treatment

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