QUESTION 3 7 point (Multiple-Choice) A sample of 25 items provides a sample standard deviation of 7. Compute the 98% confidence interval estimate of the population variance. OA 27.3616 5 0 2 s 108.3272 O B. 26.6679 s a 2 s 103.1462 OC. 3.7911 S 2 s 14.5783 O D. Cannot be computed or none of the above. O E. 26.5379 s a 2 s 102.0479 OF. 27.6603 s g 2 s 109.4138 QUESTION 4 10 points (Short-Answer) A sample of 24 items provides a sample variance of 46.5. Test the following hypotheses using a = 0.05. Ho: 0 2 $ 40 Ha: 0 2 > 40 Use the critical value approach to answer the following questions: (a). What is the value of test statistics? (5 points) (b). What is the critical value? (5 points) For the toolbar, press ALT.F10 (PC) or ALT.FN+F10 (Mac). B I Y S Paragraph Arial 10pt V Ev Av I X 0 0Q 60 5730 Click Save and Submit to save and submit. Click Save All Answers to save all answers. Save All Attiners