(Solution Download) The Precision Manufacturing Company is considering the purchase


The Precision Manufacturing Company is considering the purchase of an 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 six minutes. The number of units in the batch has the following discrete distribution:
Number of units in batch Probability
3 ..................0.1
6 ..................0.2
8 ..................0.3
14 ................0.4
18 ...................0.2



The distributions of the setup times and processing times for the two NC models follow. Assume that the work in batch shares a single setup and that each unit in the batch has equal processing time. Simulate two hours (or 10 batch arrivals) 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 recommended if both machines cost the same to produce, operate, andmaintain?

 







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