Which of the following statements regarding PERT times is TRUE?
A) The optimistic time estimate is usually the same as the most likely time estimate.
B) The optimistic time estimate is an estimate of the maximum time an activity will require.
C) The expected time estimate is calculated as t = (a + 4m + b)/6.
D) The pessimistic time estimate is an estimate of the minimum time an activity will require.
E) The most likely time estimate is an estimate of the maximum time an activity will require.

Question

Quizplus · Accepted Answer

The expected time estimate in PERT is calculated as t = (a + 4m + b)/6, which means that choice C is the correct statement. The optimistic time estimate is the best-case scenario estimate, and is usually shorter than the most likely time estimate (choice A). The pessimistic time estimate is the estimate of the maximum time an activity will require (choice D). Choice E is incorrect, as the most likely time estimate is an estimate of the most probable time an activity will require, not the maximum time. Choice B is also incorrect, as the optimistic time estimate is not an estimate of the maximum time an activity will require, but rather the best-case scenario estimate. Overall, the correct statement regarding PERT times is choice C.

Which of the Following Statements Regarding PERT Times Is TRUE