A clinical trial was conducted to test the effectiveness of a drug for treating insomnia and older subjects. Before treatment 21 subjects heading mean wait time of 100.0 minutes. After treatment the 21 subjects have a mean wig time of 91.6 minutes and a standard deviation of 20.3 minutes. Assume that the 21 sample values appear to be from a normally distributed population and construct a 99% confidence interval estimate of the main week time for a population with drug treatments. What does the results of just about the mean weight time of 100.0 minutes before the treatment? Does the drug appear to be effective? A. Construct the 99% confidence interval estimate of mean we time for a population with the treatment. B. What does the results of just about the mean with time of 100.0 minutes before the treatment? Does the drug appear to be effective?
A clinical trial was conducted to test the effectiveness of a drug for treating insomnia and older subjects. Before treatment 21 subjects heading
A. Construct the 99% confidence interval estimate of mean we time for a population with the treatment.
B. What does the results of just about the mean with time of 100.0 minutes before the treatment? Does the drug appear to be effective?
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