A clinical trial was conducted to test the effectiveness of a drug for treating insomnia in older subjects. Before treatment, 17 subjects had a mean waketime of 100.0 min. After treatment, the 17 subjects had a mean wake time of 96.2 min and a standard deviation of 22.1 min. Assume that the 17 samplevalues appear to be from a normally distributed population and construct a 90% confidence interval estimate of the mean wake time for a populationwith drug treatments. What does the result suggest about the mean wake time of 100.0 min before the treatment? Does the drug appear to be effective?.....Construct the 90% confidence interval estimate of the mean wake time for a population with the treatment.min < µ<min(Round to one decimal place as needed.) Twelve different video games showing drug use were observed. The duration times of drug use were recorded, with the times (seconds) listed below.Assume that these sample data are used with a 0.01 significance level in a test of the claim that the population mean is greater than 90 sec. If we wantto construct a confidence interval to be used for testing that claim, what confidence level should be used for a confidence interval? If the confidenceinterval is found to be - 44.0 sec < µ< 265.8 sec, what should we conclude about the claim?8115613536222143180 0261The confidence level should be%.(Type an integer or a decimal. Do not round.)

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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 for treating insomnia in older subjects. Before treatment, 14 subjects had a mean wake time of 103.0 min. After treatment, the 14 subjects had a mean wake time of 75.4 min and a standard deviation of 24.4 min. Assume that the 14 sample values appear to be from a normally distributed population and construct a 99 % confidence interval estimate of the mean wake time for a population with drug treatments. What does the result suggest about the mean wake time of 103.0 min before the treatment? Does the drug appear to be effective? Construct the 99 % confidence interval estimate of the mean wake time for a population with the treatment. nothing minless than muless thannothing min (Round to one decimal place as needed.) What does the result suggest about the mean wake time of 103.0 min before the treatment? Does the drug appear to be effective? The confidence interval ▼…
A clinical trial was conducted to test the effectiveness of a drug for treating insomnia in older subjects. Before treatment, 20 subjects had a mean wake time of 102.0 min. After treatment, the 20 subjects had a mean wake time of 92.5 min and a standard deviation of 24.6 min. Assume that the 20 sample values appear to be from a normally distributed population and construct a 99% confidence interval estimate of the mean wake time for a population with drug treatments. What does the result suggest about the mean wake time of 102.0 min before the treatment? Does the drug appear to be effective? Construct the 99% confidence interval estimate of the mean wake time for a population with the treatment. min <µ< min (Round to one decimal place as needed.)
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