Question: The following data resulted from a machine study: -Mean manual effort time per cycle: 4.62 min. -Mean cutting time (power feed): 3.74 min. -Mean performance

The following data resulted from a machine study: -Mean manual effort time per cycle: 4.62 min. -Mean cutting time (power feed): 3.74 min. -Mean performance rating: 115 percent -Machine allowance (power feed): 10 percent -Fatigue allowance: 15 percent A. What is the standard time for the operation? B. Explain the Westinghouse system of rating. C. Under the Westinghouse rating system, why are "conditions" evaluated

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