Do male and female servers work the same number of hours? A sample of 27 female servers worked an average of 25 hours per week, with a standard deviation of 5. A sample of 16 male servers worked an average of 37 hours per week, with a standard deviation of 2. Construct a 80% confidence interval for the mean difference in hours worked for male and female servers. You may assume that the populations are normal. Lower bound on CI = {use two decimal places)_ Upper bound on CI = C] (use two decimal places)