For Exercise 3.21, management estimates that the customer delay cost ranges from $120 to $160. How..

For Exercise 3.21, management estimates that the customer
delay cost ranges from $120 to $160. How much difference will the estimate
effect the staffing levels?

Exercise 3.21

A call center has 600 calls (arrivals) per hour. Average
service time for a call is 6 minutes. Management has determined that the cost
to staff an agent is $9.50 per hour. In addition, the cost of delaying a
customer 1 hour is roughly $158. Use Equation 3.92 to determine the service
value _. Use the square root staffing formula to determine the appropriate
staffing level.