(Solved) : 1706 18 T000am Mathxlcom Elementary Statistics 1 Rafael Ojeda 11 6 18 4 07 Homework Assign Q32562631 . . .
1706/18 T000am mathxl.com Elementary Statistics (1) Rafael Ojeda 을 | 11/6/18 4:07 AM Homework: Assignment #17(chapter 9 part 2) Score: 0 of 1 pt 9.2.25 Save 11 of 15 (0 complete) HW Score: 0%, 0 of 15 pts Question Help In a survey conducted by a polling company, 1100 adult Americans were asked how many hours they worked in the previous week. Based on the results, a 95% confidence interval for the mean number of hours worked had a lower bound of 42.7 and an upper bound of 44.5. Provide two recommendations for decreasing the margin of error of the interval. Select all that apply. A. Decrease the standard deviation of hours worked B. Increase the sample size C. Decrease the sample size □ D. Use fewer degrees of freedom. E. Increase the confidence level □ F. Decrease the confidence level Click to select your answer(s) and then click Check Answer All parts showing Clear All Check Answer Show transcribed image text
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Answer to 1706 18 T000am Mathxlcom Elementary Statistics 1 Rafael Ojeda 11 6 18 4 07 Homework Assign Q32562631 . . .
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