Homework: Ch9 HW One Sample Confidence Hw Score: 59.03%, 14.17 of 24 points f3 Question 17, 9.2.25 0 Poms: 0 0\" = Intervals in a survey conducted by the Gallup Organization, 1100 adult Americans were asked how many hours they worked in the previous week Based on the results, a 95% condence 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 the two recommendations that would decrease the margin of error of the interval. :1 A. Use fewer degrees offreedom. j E. Decrease the sample size :1 C. Decrease the condence level. I] D. Increase the sample size. :1 E. Decrease the standard deviation of hours worked. :] F. Increase the condence level