Concept
How does PERT improve activity-time estimates?
IntroductionToBusiness OP 8D04gAa / 10.6. Looking for a Better Way: Improving Production and Operations*
"diagram shows only one number for the time needed to complete each activity. In contrast, PERT assigns three time estimates for each activity: an optimistic time for completion, the most probable time, and a pessimistic time. These estimates allow managers to anticipate delays and potential problems and schedule accordingly."
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