PERT analysis computes the variance of the total project completion time as
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A project's critical path is composed of activities A, B, and C. Activity A has a standard deviation of 2, activity B has a standard deviation of 1, and activity C has a standard deviation of 2. What is the standard deviation of the critical path?PERT analysis computes the variance of the total project completion time asThe critical path of a network is theWhich of the following is a direct responsibility of the project manager?What is the probability that a project with a mean completion time of 23.9 days and a variance of 6 days will be finished in 26 days?An activity has an optimistic time of 15 days, a most likely time of 18 days, and a pessimistic time of 27 days. What is its expected time?What analysis computes a variance of the total project completion time as?PERT analysis computes the variance of the total project completion time as: The sum of the variances of all activities on the critical path.
What is PERT analysis based on which time?It analyzes the time required to complete each task and its associated dependencies to determine the minimum time to complete a project. It estimates the shortest possible time each activity will take, the most likely length of time, and the longest time that might be taken if the activity takes longer than expected.
What is the role of variance in PERT analysis?What is the purpose of this calculation, i.e. what's the role of variances in PERT analysis? The activity variances influence the probability of project completion. Specifically, the sum of the variances of the critical tasks equals the variance of the project.
What is the basic assumption of PERT?The main PERT assumptions are given along the following lines: The activity durations are independent random variables. The critical paths are independent (i.e. have no activities in common) The normal distribution can be applied (n is sufficiently large) thanks to the central limit theorem.
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