Determine the number of machine fractions


Assignment:

In a simple four step manufacturing process, the scrap rates for processes 1,2,3, and 4 are 3%,4%,5% respectively. the demand is 1000 good parts per shift (8 hour shift). Assume the scrap costs for processes 1,2,3, and 4 are $5,$6,$7, and $10 respectively. The standard times for processes 1,2,3, and 4 are 5,6,8, and 10 min respectively.

Find the number of machine fractions (don't round) needed per shift (8 hour shift) for each process. Assume 80% efficiency and 90% reliability for each process.

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Operation Management: Determine the number of machine fractions
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