The Post Office Uses a Multiple Channel Queue, Where Customers

question 9

Essay

The post office uses a multiple channel queue, where customers wait in a single line for the first available window. If the average service time is 1 minute and the arrival rate is 7 customers every five minutes, find, when two service windows are open,
a.the probability both windows are idle.
b.the probability a customer will have to wait.
c.the average time a customer is in line.
d.the average time a customer is in the post office.

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Definitions:

Projected Sales

Future sales estimates based on historical data, market analysis, and other predictive techniques.

Accounts Receivable

The amount of money owed to a company by its customers for goods or services sold on credit.

Budgeted Sales

Forecasted revenue a company expects to generate from selling its products or services in a specific period.

Credit Sales

Transactions in which goods or services are provided to a customer with the agreement that payment will be made at a later date.