2. The Precision Manufacturing Company is considering the purchase of a numerical control (NC) machine and has narrowed the possible choices to two models. The company produces several products, and batches of work arrive at the NC machine every 6 minutes. The number of units in the batch has the following discrete distribution: Number of Units in Batch 3 Probability 0.1 6 0.2 8 0.3 14 0.2 18 0.2 The distributions of the setup times and processing times for the two NC models follow. Assume that the work in a batch shares a single setup and that each unit in the batch has equal processing time. Simulate 2 hours (or 10 batch arriv- als) of operation for the two NC machines. Use the following random numbers-the first one for the number of units in a batch, the second one for setup times, and the third one for run times: (71, 21, 50), (50, 94, 63), (96, 93, 95), (83, 09, 49), (10, 20, 68), (48, 23, 11), (21, 28, 40), (39, 78, 93), (99, 95, 61), (28, 14, 48) Which one would you recommend if both machines cost the same to purchase, operate, and maintain? NC MACHINE 1 Setup Time (min) Run Time per Unit Probability (sec) Probability 1 0.10 5 0.10 2 0.20 6 0.20 3 0.40 7 0.30 4 0.20 8 0.25 5 0.10 9 0.15 NC MACHINE 2 Setup Time (min) Run Time per Unit Probability (sec) Probability 1 0.05 3 0.20 2 0.15 4 0.25 3 0.25 5 0.30 4 0.45 6 0.15 5 0.10 7 0.10