An analyst has timed a metal-cutting operation for 50 cycles. The average time p
ID: 445851 • Letter: A
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