Every time a machine breaks down at the Dynaco Manufacturing Company (Problem 3), either 1, 2, or 3 hours are required to fix it, according to the following probability distribution:

Simulate the repair time for 20 weeks and then compute the average weekly repair time.

Simulation
Week	RN	Breakdown #	RN	Repair time/breakdown	Repair Time/week
1				0/1	#VALUE!
2				50/2	#VALUE!
3				44/2	#VALUE!
4				86/3	#VALUE!
5				58/3	#VALUE!
6				38/2	#VALUE!
7				1-May	0
8				15/1	#VALUE!
9				94/3	#VALUE!
10				8 1	#VALUE!
11				16/1	#VALUE!
12				50/2	#VALUE!
13				88/3	#VALUE!
14				29/1	#VALUE!
15				79/3	#VALUE!
16				92/3	#VALUE!
17				26/1	#VALUE!
18				36/2	#VALUE!
19				1-Jun	0
20				41/2	#VALUE!

1.9 hours

Average repair time

Table from P3
Breakdown
P(x)	Cumulative	Breakdown
0.1	0.1	0
0.2	0.3	1
0.15	0.45	2
0.3	0.75	3
0.15	0.9	4
0.1	1	5

Repair Time (hr.) Probability 1 0.20 0.50 3 0.30 1.00 2.