a) The data below shows the arrival time , service time , and delays for 6 customers arriving at a Barbershop, which has one Barber, and service is offered on a first-come first-served basis.
|
i
|
1
|
2
|
3
|
4
|
5
|
6
|
|
Ai
|
15
|
47
|
71
|
111
|
123
|
152
|
|
Di
|
0
|
11
|
23
|
17
|
35
|
44
|
|
Si
|
43
|
36
|
34
|
30
|
38
|
40
|
i. Calculate the average inter-arrival time and the arrival rate
ii. Calculate the average service time and the service rate
iii. Calculate the average delay in the queue
iv. Calculate the average wait in the service node
b) Outline thre attributes of Discrete-event simulation models