Normally Distributed Activity Durations in PERT Networks

Abstract

It is assumed that activity durations in a PERT network are independent and normal random variables. A simple method of obtaining lower and upper bounds for the expected project completion time is described. The tightness of the bounds is examined for some numerical examples. A problem of applying the method in the case of non-normal distributions of activity times is also discussed.

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Erratum: Normally Distributed Activity Durations in PERT Networks

An erratum to this article is available at http://dx.doi.org/10.1057/jors.1986.89.

An erratum to this article is available at http://dx.doi.org/10.1057/jors.1986.89.