In a stopwatch time study, the number of cycles that must be timed is a function of:
(I)the variability of observed times.(II)the desired accuracy for the estimated job time.(III)the desired level of confidence for the estimated job time.
A)I only
B)I and II only
C)II and III only
D)I, II, and III
E)I and III only

Question

Quizplus · Accepted Answer

The number of cycles that must be timed in a stopwatch time study is indeed a function of the variability of observed times (I), the desired accuracy for the estimated job time (II), and the desired level of confidence for the estimated job time (III). Higher variability, higher desired accuracy, and higher desired confidence levels all typically require more observations to achieve reliable estimates.

In a Stopwatch Time Study, the Number of Cycles That