6 Chrome File Edit View History Bookmarks Profiles Tab Window Help Wed 2:39 PM Q Q i mathxl.com/Student/PlayerTest.aspx?testId=237717546¢en~in=yes 0 Math 54: Elementary Statistics (2) Shane Amar 5 | 12/15/21 2:39 PM _ a T, e . e l Reading List This test: 100 point(s) possible @ TESt: Fmal E... Question 34 0f 48 This question: 3 point(s) possible Submit test A simple random sample of size n is drawn. The sample mean, )2, is found to be 19.5, and the sample standard deviation, 5, is found to be 4.4. a Click the icon to view the table of areas under the t-distribution. 1 page (a) Construct a 95% condence intenlal about u if the sample size, n, is 34. Lower bound: ; Upper bound: (Use ascending order. Round to two decimal places as needed.) (b) Construct a 95% condence interval about u ifthe sample size, n, is 51. Lower bound: ; Upper bound: (Use ascending order. Round to two decimal places as needed.) How does increasing the sample size affect the margin of error, E? Deadline: Dec 16 '21 O A. The margin of error increases 1 page 0 B. The margin of error decreases. O C. The margin of error does not change. (c) Construct a 99% condence interval about ii if the sample size, n, is 34. Lower bound: ; Upper bound: (Use ascending order. Round to two decimal places as needed.) Compare the results to those obtained in part (a). How does increasing the level of condence affect the size of the margin of error, E? O A. The margin of error decreases. Deadline: Dec 16 '21 O B. The margin of error does not change. 0 c. The margin of error increases. (9 Time Remaining: 00:50:03