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Question
For a time study, the three factors that determine how large a sample size to take are
A) the level of confidence, the z-value, and normal time
B) needed accuracy, desired confidence, and standard deviation of the initial sample
C) the level of confidence, the z-value, and the work sampling idle percent
D) actual time, normal time, and standard time
E) actual time, standard time, and mean time
Answer
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