If a manager conducting a time study needed an accuracy of ±0.1 minutes, rather than ±0.2 minutes, the adequate sample size would have to be twice as large.

Question

Quizplus · Accepted Answer

The sample size required for a specified level of accuracy in a time study is determined by the variability of the data and the desired level of confidence. Changing the desired accuracy from ±0.2 minutes to ±0.1 minutes will not necessarily require the sample size to double. It depends on the level of variability in the data.

If a Manager Conducting a Time Study Needed an Accuracy