Answered: A clinical trial was conducted to test…

Name: A clinical trial was conducted to test the effectiveness of a drug tes
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Description: A clinical trial was conducted to test the effectiveness of a drug testing for insomnia and older subjects before the treatment 25 subjects had a mean wake up time at 102 minutes after the treatment 25 subjects that had a mean of 75.1 minutes and a s

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 testing for insomnia and older subjects before the treatment 25 subjects had a mean wake up time at 102 minutes after the treatment 25 subjects that had a mean of 75.1 minutes and a standard deviation of 21.2 minutes assume the 25 sample values appear to be normally distributed and construct a 99% confidence interval estimate of the main wake up time for a population with drug treatments what does the results suggest about the mean wake up time of 102 minutes before the treatment does the drug appear to be effective

Features Features Normal distribution is characterized by two parameters, mean (µ) and standard deviation (σ). When graphed, the mean represents the center of the bell curve and the graph is perfectly symmetric about the center. The mean, median, and mode are all equal for a normal distribution. The standard deviation measures the data's spread from the center. The higher the standard deviation, the more the data is spread out and the flatter the bell curve looks. Variance is another commonly used measure of the spread of the distribution and is equal to the square of the standard deviation.

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99% confidence interval do not include 102

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