Question: Jobs need processing at machine A. Machine A has a mean time to failure of 30 hours and a mean time to repair of 3

Jobs need processing at machine A. Machine A has a mean time to failure of 30 hours and a mean time to repair of 3 hours. The standard deviation of time to repair is 4 hours. The average natural processing time is 5 minutes with a standard deviation of 1 minute. What is the squared coefficient of variation (SCV) of the effective process time?

0.04

0.2

7.0

8.3

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