Question: A manager is going to purchase new processing equipment and must decide on the number of spare parts to order with the new equipment. The
A manager is going to purchase new processing equipment and must decide on the number of spare parts to order with the new equipment. The spares cost $186 each, and any unused spares will have an expected salvage value of $50 each. The probability of usage can be described by this distribution:
| Number | 0 | 1 | 2 | 3 |
| Probability | .10 | .50 | .25 | .15 |
If a part fails and a spare is not available, 2 days will be needed to obtain a replacement and install it. The cost for idle equipment is $610 per day. What quantity of spares should be ordered? a. Use the ratio method. (Round your answer to 2 decimal places.) Service level is , so we need to order Spares. b. Use the tabular method.
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