Find the confidence interval estimate.   enter your response here min<σ

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
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A clinical trial was conducted to test the effectiveness of a drug used for treating insomnia in older subjects. After treatment with the​ drug,
19
subjects had a mean wake time of
94.2
min and a standard deviation of
41.9
min. Assume that the
19
sample values appear to be from a normally distributed population and construct a
98​%
confidence interval estimate of the standard deviation of the wake times for a population with the drug treatments. Does the result indicate whether the treatment is​ effective?
 
 
 
Find the confidence interval estimate.
 
enter your response here
min<σ<enter your response here
min
​(Round to two decimal places as​ needed.)
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