3. The following data resulted from a time study taken on a horizontal milling machine: (NOTE: For machine operations, rating factor is 100%) Mean manual effort time per cycle: 4.62 minutes Mean cutting time (power feed): 3.74 minutes Mean performance rating: 115% Machine allowance (power feed): 10 percent Fatigue allowance: 15 percent What is the standard time for the operation? Required: What is the standard time for the operation? This should be the summation of both machine and manual operations NOTE: This should be the summation of both machine and manual operations For computing the normal time, machine operations should be separated first from manual operations since rating factor for machine operations is 100%.