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 confidence interval for the mean number of hours worked had a lowe 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 A Increase the sample size B Use fewer degrees of freedom C Decrease the sample size D Decrease the standard deviation of hours worked E Decrease the confidence level F Increase the confidence level