Please use R to solve if possible

Please include all the code used

Thank you very much!!!

Question 1. An 5R5 survey of a large car dealership collects information on the average hours worked and the average amount of commission collected by employees. There are 112 employees and the overall average number of hours worked is 21. The data file for this question is comic 3 ion . c av. Part A. Explain why a ratio estimation of the average commission makes sense here. Part 5. Build a 55% confidence interval for the mean commission; and the total commission. Part 1:. Using ratio estimation, what should the minimum sample size be to be accurate to within 1 unit 19 times out of 2|}? Part D. Suppose you ignored the hours worked and built an built a 9556 Ski condence interval for the mean commission. Compare your 5% and ratio intervals. \f