points courses (chapter 7) Part 2 of 2 Points: 0.4 of 1 Save irse Hon 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 100.0 min. After treatment, the 14 subjects had a mean wake time of 96.6 min and a standard deviation of 20.6 min. Assume that the 14 sample values appear to be from a signment normally distributed population and construct a 90% 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 100.0 min before the treatment? Does the drug appear to be effective? udent Gra atCrunch Construct the 90% confidence interval estimate of the mean wake time for a population with the treatment. ata Sets 86.8 min