The expected activity time in PERT analysis is calculated as:
A) the simple average of the optimistic, pessimistic, and most likely times.
B) the weighted average of a, m, and b, with m weighted 4 times as heavily as a and b.
C) the sum of the optimistic, pessimistic, and most likely times.
D) the sum of the optimistic, pessimistic, and most likely times, divided by six.
E) the sum of the activity variances, divided by six.

Question

Quizplus · Accepted Answer

The expected activity time in PERT analysis is calculated as the weighted average of the optimistic, pessimistic, and most likely times, with most likely time (m) being weighted four times as heavily as optimistic (a) and pessimistic (b) times. Therefore, option B is the correct choice.

The Expected Activity Time in PERT Analysis Is Calculated As