Q4. The snapback timing method in direct time study was used to obtain the times for a worker-machine task as indicated in the table below. Element c is a machine-controlled element and the time is constant. Elements a,b,d, e, and f are operator-controlled and were performance rated at 95%; they are all external elements performed in sequence with machine element c. The machine allowance is 30%, and the PFD allowance is 15%. (a) Determine the standard time for the cycle. i) 1.980min ii) 2.435min iii) 3.245min iv) 4.943min (b) If the operator works at 100% of standard performance in production and one part is produced each cycle, how many parts are produced if the total time worked during an 8-hour day is 7.25 hours? i) 94 ii) 105 iii) 168 iv) 214 (c) What is the worker's efficiency for this shift? i) 90% ii) 95% iii) 100% iv) 108%