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A medical equipment testing and calibration service is shown below. The customer usually brings the equipment to the service center. The service process requires servic technicians to perform three process steps #1 to #3. Each technician is cross-trained so they can perform any of the three steps. The inspector does step #4 alone. After step #4, two parallel work activities are performed. That is, a shipping clerk packs the work (step #7), while simultaneously, a billing clerk prepares the invoice (step #5) and the customer is contacted by phone for pick-up (step #6). The average throughput is three equipment units per hour. Start 1 2 Activity Start 1 2 3 4 5 6 7 End 3 The table below shows the work content of the process steps, activity times in minutes per unit, shared and non-shared work activities, and the type of resource required There are three service technicians on duty, one inspector, one billing clerk, and one shipping clerk. Activity Time (minutes) 8 16 26 12 4 4 25 Activity Performed By Service technician Service technician Service technician 7 Inspector Billing clerk Billing clerk Shipping clerk End
Round your answers to the nearest whole number. a. What is the service rate for the service technician? minutes/unit b. What is the labor utilization rate (%) for the billing clerk? % c. What is the labor utilization rate (%) for the service technician? End % % d. Calculate the labor utilization rates (%) for the inspector and the shipping clerk. Inspector utilization: Shipping clerk utilization: What job represents the bottleneck in this process? The -Select- ✓job is the bottleneck. % 3