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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, 14 subjects had a mean wake time of 97.7 min and a standard deviation of 44.8 min. Assume that 14 sample values appear to be from a normally distributed population and construct a 95% confidence interval estimate of the standard deviation of the wake times for a population with the drug treatments. Does the result indicate wheth the treatment is effective? Find the confidence interval estimate. min< a

A clinical trial was conducted to test the effectiveness of a drug used for treating insomnia in older subjects. After treatment with the drug, 14 subjects had a mean wake time of 97.7 min and a standard deviation of 44.8 min. Assume that 14 sample values appear to be from a normally distributed population and construct a 95% confidence interval estimate of the standard deviation of the wake times for a population with the drug treatments. Does the result indicate wheth the treatment is effective? Find the confidence interval estimate. min< a

Calculus For The Life Sciences
Calculus For The Life Sciences
2nd Edition
ISBN:9780321964038
Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Chapter13: Probability And Calculus
Section13.2: Expected Value And Variance Of Continuous Random Variables
Problem 10E
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A clinical trial was conducted to test the effectiveness of a drug used 14 sample values appear to be from a normally distributed population the treatment is effective? Find the confidence interval estimate. min<o<min (Round to two decimal places as needed.) treating insomnia in older subjects. After treatment with the drug, 14 subjects had a mean wake time of 97.7 min and a standard deviation of 44.8 min. Assume that the and construct a 95% confidence interval estimate of the standard deviation of the wake times for a population with the drug treatments. Does the result indicate whether
Transcribed Image Text:A clinical trial was conducted to test the effectiveness of a drug used 14 sample values appear to be from a normally distributed population the treatment is effective? Find the confidence interval estimate. min<o<min (Round to two decimal places as needed.) treating insomnia in older subjects. After treatment with the drug, 14 subjects had a mean wake time of 97.7 min and a standard deviation of 44.8 min. Assume that the and construct a 95% confidence interval estimate of the standard deviation of the wake times for a population with the drug treatments. Does the result indicate whether
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