The following activities and times (in minutes) were recorded for a press operator:
- removes completed widget from press, 0.1
- inspects widget, 0.4
- places widget on conveyor to next station, 0.2
- places raw blank into press and pushes "GO", 0.1
- press cycles automatically for, 2.0
The cycle then repeats itself. The operator is paid $10.00/hr, the press costs $30.00/hr to run. What is the optimum number of machines to insure the lowest unit cost? Draw a worker-machine chart. What is the %idle time? What is the unit cost? What is the productivity (widgets/hr)?