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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Question

A clinical trial was conducted to test the effectiveness of a drug for treating insomnia.Before treatment,13 subjects had a mean wake time of 100 minutes.After treatment the 13 subjects had a mean wake time of 75.5 minutes and a standard deviation of 23.9 minutes. 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 treatment. What does the results suggest about the mean wake time of 100 min before treatment? Does the drug appear to be effective?

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