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AMS 102 Elements of Statistics Spring 2021 Homework: Online assignment #5 Confidence Intervals (chapter Score: 0 of 1 pt 4 9 of 14 (8 complete) V E HW Score: 42.86%, 6 of 14 pts 7..213-T Question Help V a A clinical trial was conducted to test the effectiveness of a drug for treating insomnia in older subjects. Before treatment, 13 subjects had a mean wake time of 104.0 min. After treatment, the 13 subjects had a mean wake time of 94.5 min and a standard deviation of 20.9 min. Assume that the 13 sample values appear to be from a normally distributed population and construct a 99% condence interval estimate of the mean wake time for a population with drug treatments. What does the result suggest about the mean wake time of 104.0 min before the treatment? Does the drug appear to be effective? Construct the 99% condence interval estimate of the mean wake time for a population with the treatment. min