Create a simulation table using excel:

Time Between Machine Breakdown Time (min) 2 3 Time (min) 2 Time (min) 2 3 Probability 01 05 Repair Time Probability 03 07 Cumulative Probability 05 1.0 Cumulative Probability 0.3 Time of Part Arrival to Machine Probability 04 04 02 Cumulative Probability 1.0