Question

A fast-food restaurant has one drive-through window. An average of 40 customers per hour arrive at the window. It takes an average of 1 minute to serve a customer. Assume that interarrival and service times are both exponential. (a) On the average, how many customers are waiting in line? (b) On the average, how long does a customer spend at the restaurant (from time of arrival to time service is completed)? (c) What fraction of the time are more than 3 cars waiting for service (this includes the car (if any) at the window)?

          A fast-food restaurant has one drive-through window. An average of 40 customers per hour arrive at the window. It takes an average of 1 minute to serve a customer. Assume that interarrival and service times are both exponential.

(a) On the average, how many customers are waiting in line?
(b) On the average, how long does a customer spend at the restaurant (from time of arrival to time service is completed)?
(c) What fraction of the time are more than 3 cars waiting for service (this includes the car (if any) at the window)?

$A fast-food restaurant has one drive-through window. An average of 40 customers per hour arrive at the window. It takes an average of 1 minute to serve a customer. Assume that interarrival and service times are both exponential. (a) On the average, how many customers are waiting in line? (b) On the average, how long does a customer spend at the restaurant (from time of arrival to time service is completed)? (c) What fraction of the time are more than 3 cars waiting for service (this includes the car (if any) at the window)?$

Added by Johnathan B.

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