Problem 3 (17 points total): You conducted a time study (7 cycles) on an assembly operation with 6 elements (A-F). You determined that the rating factor was 105% overall, and the PFD is 12%. Date: Observer: Worker: 4/30/2021 IE 2400 student Mike Tiger Cycle Element 2 3 3 4 5 5 6 6 Standard Deviation 1.50 A 1 8 4 8 00 8 10 7 5 8 4 B 4 4 4 1 4 4 5 10 10 10 11 10 10 C D E 7 Average 8 7.71 4 4.14 10 10.14 6 5.86 29 28.00 8 8.14 65 64.00 0.38 0.38 0.69 4.20 5 7 6 6 6 5 27 26 25 37 27 8 F 9 8 0.38 25 8 8 8 60 64 62 (All times are in minutes) TOTAL 65 62 70 3.21 1. (6 points) What is the standard time for the operation? 2. (6 points) If management expects a 99% confidence interval, what is the accuracy of your standard time estimate? 3. (5 points) If Mike finishes 30 assemblies in a work week (40 hours), what is his efficiency