Determining the effectiveness of a scheduling decision

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Reference no: EM131700028

1) A manufacturer of disk drives for notebook computers wants a MTBF of at least 50,000 hours. Recent test results for 10 units were one failure at 10,000 hours, another at 25,000 hours, and two more at 45,000 hours. The remaining units were still running at 60,000 hours.

  • Determine the following:
  • a. Percent of failures and
  • b. Number of failures per unit-hour and
  • c. MTBF at this point in the testing

2) List the four criteria for determining the effectiveness of a scheduling decision. How do these criteria relate to the four criteria for sequencing decisions?

3) How can a manager evaluate the effectiveness of the maintenance function?

4) Name five priority sequencing rules. Explain how each works to assign jobs.

Reference no: EM131700028

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