Every time a machine breaks down at the Dynaco Manufacturing Company (Problem A), either 1, 2, or 3 hours are required to fix it, according to the following probability distribution:
|
Repair Time (hr.)
|
Probability
|
|
1
|
.30
|
|
2
|
.50
|
|
3
|
.20
|
|
|
1.00
|
The Dynaco Manufacturing Company produces a product in a process consisting of operations of five machines. The probability distribution of the number of machines that will break down in a week follows:
|
Machine Breakdowns per Week
|
Probability
|
|
0
|
.10
|
|
1
|
.10
|
|
2
|
.20
|
|
3
|
.25
|
|
4
|
.30
|
|
5
|
.05
|
|
|
1.00
|
[A] If the random numbers that are used to simulate breakdowns per week are also used to simulate repair time per breakdown, will the results be affected in any way? Explain your answer.
[B] Simulate the repair time for twenty weeks and then compute the average weekly repair time.