Practical Management Science
6th Edition
ISBN: 9781337406659
Author: WINSTON, Wayne L.
Publisher: Cengage,
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The frequency of breakdown of a machine that issues lottery tickets is given in the following table. Repairs cost an average of $240. A service firm is willing to provide preventive maintenance under either of two options: #1 is $500 and covers all necessary repairs, and #2 is $350 and covers any repairs after the first one. Which option would have the lowest expected cost: pay for all repairs, service option #1, or service option #2?
Number of Breakdowns/Month | 0 | 1 | 2 | 3 | 4 |
---|---|---|---|---|---|
Frequency of Occurrence | .10 | .30 | .30 | .20 | .10 |
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