(10 points) The normal time for a repetit h atduces two work per ce min. The plant uses a PFD allowance factor of 15 Determine the standard meet and (b) how many work units are produced in an hour tandard performance 4. (10 points) The normal time of the work cycle in a worker-machine system is 5.50 min. The operator-controlled portion of the cycle is 0.70 min. One work unit is produced each cycle. The machine cycle time is constant. (a) Using a PFD allowance factor of 16% and a machine allowance factor of 30%, determine the standard time for the work cycle. (b) If a worker assigned to this task completes 80 units during an 8-hour shift, what is the worker's efficiency