Question: The interarrival time for parts needing processing is given as follows:
Interarrival Time (Seconds) Proportion
10-20 0.20
20-30 0.30
30-40 0.50
There are three types of parts: A, B, and C. The proportion of each part, and the mean and standard deviation of the normally distributed processing times are as follows:
Part Type Proportion Mean Standard Deviation
A 0.5 30 seconds 3 seconds
B 0.5 40 seconds 4 seconds
C 0.5 50 seconds 7 seconds
Each machine processes any type of part, one part at a time. Use simulation to compare one with two with three machines working in parallel. What criteria would be appropriate for such a comparison?