MAT 1140 - LDO2 BROOKS FALL 2021 Miakimberly Vinoya | 11/03/21 8:06 PM E Hon Question 4, 7.2.13-T Save Part 1 of 2 O Points: 0 of 1 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 101.0 min. After treatment, the 18 subjects had a mean wake time of 78.3 min and a standard deviation of 24.7 min. Assume that the 18 sample values appear to be from a 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 101.0 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