How Many Cycles Should Be Used in a Time Study

question 18

Multiple Choice

How many cycles should be used in a time study in order to be 95% confident that the time-study average job cycle time is within 5% of the true average job cycle time? Assume that the average job cycle time is 2.67 minutes,and the standard deviation of the sample is 0.72 minutes.

• A)36 cycles
• B)72 cycles
• C)98 cycles
• D)112 cycles

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Definitions:

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The process of modifying clinical or organizational practices based on the latest evidence or feedback to improve outcomes.

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The process of evaluating the results or effects of actions, treatments, or interventions.

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A set of techniques and tools for process improvement aiming at reducing variability and defects.

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