Stuart Mitchell

08/07/2024 · Elementary School

A clinical trial was conducted to test the effectiveness of a drug for treating insomnia in older subjects. Before treatment, 18 subjects had a mean wake time of 103.0 min. After treatment, the 18 subjects had a mean wake time of 74.9 min and a standard deviation of 24.6 min. Assume that the 18 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. 58.1 min < \( \mu<91.7 \) 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 This result suggests that the drug treatment the mean wake time of 103.0 min before the treatment, so the means before and after the treatment