Homework Assignment Chapter 11 Saved 3 Exercise 11-9 Algo 6.25 A research analyst is examining a stock for possible Inclusion In his client's portfolio. Over a 16-year period, the sample mean an points sample standard deviation of annual returns on the stock were 18% and 10%, respectively. The client wants to know if the risk, a measured by the standard deviation, differs from 14% (You may find It useful to reference the appropriate table: chl-square te Skipped F table) s. Construct the 90% confidence Intervals for the population variance and the population standard deviation. (Round Intermedi eBook calculations to at least 4 decimal places and final answers to 2 decimal places.) Print Confidence Intervals References Population variance Population standard deviation to b. What assumption did you make in constructing the confidence Intervals