Question

sh1Shedd state Athens BB Check my work mode : This shows what is correct or incorrect for the work you have completed so far. It does not indicete completion. Return to Exercise 11-9 Algo A research analyst is examining a stock for possible inclusion in his client's portfolio. Over a 19-year period, the sample mean and the sample standard deviation of annual returns on the stock were 23% and 15% respectively. The client wants to know i measured by the standard deviation, differs from 19% (You may find it useful to reference the appropriate F teble) f the risk, as table: chisuaretable or a. Construct the 99% confidence intervals for the population variance and the population standard deviation. (Round intermed calculations to at least 4 decimal places and final answers to 2 decimal places.) Population variance Population standard deviation Confidence Intervals to to Pre 3 of 6l Next> Ch10 017 V18 D.d.. earch

Answer 1

from above 99% CI for population variance =7.27 to 43.10

99% CI for population std deviation =2.70 to 6.56 ( please try 2.70 to 6.57 if this comes wrong)