thapter $11$ Homework: Process Analysis and Resource Utilization

A medical equipment testing and calibration service is shown below. The customer usually brings the equipment to the service center. The service process requires service 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 $$nvoice $($step #$5),$ and the customer is contacted by phone for pick$-$up $($step #$6).$ The average throughput is three equipment units per hour.

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.

$\backslash$table$[[$Activity$,\backslash$table$[[$Activity Time$],[($minutes$)]],\backslash$table$[[$Activity$],[$Performed By$]]],[$Start$,-,],[1,9,$Service technician$],[2,16,$Service technician$],[3,25,$Service technician$],[4,12,$Inspector$],[5,3,$Billing clerk$],[6,5,$Billing clerk$],[7,25,$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?