A clinical trial was conducted to test the effectiveness of a drug used for treating insomnia in older subjects. After t

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A clinical trial was conducted to test the effectiveness of a drug used for treating insomnia in older subjects. After t

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A Clinical Trial Was Conducted To Test The Effectiveness Of A Drug Used For Treating Insomnia In Older Subjects After T 1
A Clinical Trial Was Conducted To Test The Effectiveness Of A Drug Used For Treating Insomnia In Older Subjects After T 1 (27.56 KiB) Viewed 23 times
A clinical trial was conducted to test the effectiveness of a drug used for treating insomnia in older subjects. After treatment with the drug, 15 subjects had a mean wake time of 92.4 min and a standard deviation of 42.8 min. Assume that the 15 sample values appear to be from a normally distributed population and construct a 90% confidence interval estimate of the 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 min<o< min (Round to two decimal places as needed.) 4
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