The Riverton Post Office has four stations for service. Customers line up in sin

Question

The Riverton Post Office has four stations for service. Customers line up in single file for service on a FIFO basis. The mean arrival rate is 40 per hour, Poisson Distributed, and the mean service time per service is 4 minutes, exponentially distributed.

What is the value of Lambda?

40

15

.6667

1.5

60

4

The average number of customers in the system is _____.

.76

3.42

.02

1.14

5.14

The percentage of the time a customer can walk in and get served without waiting at all is?

67%

94%

6%

none of these

33%

In terms of the postal workers’ (servers’) idle time, the operation appears to be performing satisfactorily.

T/F

Explanation / Answer

Solution:-
1) option A. 40

The value of lamda 40

2) option B. 3.42

The average number of customers in the system is 3.42

3) option C. 6%

4) F

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