An analyst has timed a metal-cutting operation for 50 cycles. The average time p

Question

An analyst has timed a metal-cutting operation for 50 cycles. The average time per cycle was 10.4 minutes, and the standard deviation was 1.20 minutes for a worker with a performance rating of 137 percent. Assume an allowance of 15 percent of job time. Find the standard time for this operation.

minutes

An analyst has timed a metal-cutting operation for 50 cycles. The average time per cycle was 10.4 minutes, and the standard deviation was 1.20 minutes for a worker with a performance rating of 137 percent. Assume an allowance of 15 percent of job time. Find the standard time for this operation.

Explanation / Answer

Standard Time =(Observed time X Rating Factor)(1+PFD Allowance)

=(10.4*1.37)(1+.15) = 16.38520 minutes

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