What is that average waiting time in the system

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Reference no: EM133381327

Question: The expected time to complete processing by TSA security at San Jose airport (SJC) is 15 minutes. The average number of people in process by TSA security staff at San Jose airport (SJC) is 120. At what rate (in passengers per hour) are passengers processed by TSA security staff at San Jose airport (SJC)? A retail chain is trying to finalize the design of their payment kiosk, for national rollout. Two options are on the drawing board: Design A: A system with four human servers (each server provides exponentially distributed service at the rate of 10 customers/hour) with customers forming a separate line in front of each server. Customers are expected to join each queue at the rate of 8/hour. Design B: A single robotic server that provides constant duration service at the rate of 33 customers/hour. Customers are expected to join the system in a Poisson process at the rate of 32/hour. The average waiting time in the system is shorter in one of the two designs. What is that (shorter) average waiting time in the system (in hours)? Give your answer to four decimal place accuracy.

Reference no: EM133381327

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