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CMA Intermediate · Operations Management and Strategic Management · Control Measures - Time and Motion Study, Method Study, Work Study

Which of the following best describes the purpose of the 'rating' step in a stopwatch time study?

Rating converts observed times into the time a qualified worker would take working at a normal pace. The analyst judges the operator's speed against a standard of 100 and adjusts the observed time, giving basic time, before allowances are added to reach standard time.

  1. ATo select the most suitable worker for the job based on seniority
  2. BTo compute the number of observations needed for a given confidence level
  3. CTo convert observed times into times a qualified worker would take working at normal paceCorrect
  4. DTo add allowances for fatigue and personal needs to the basic time

Explanation

Rating compares the observed worker's pace with the concept of a normal pace so that observed time can be adjusted to basic (normal) time. Allowances are added after rating to obtain standard time, so the allowance option describes a later step.

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