A project being analyzed by PERT has 60 activities, 13 of which are on the critical path. If the estimated time along the critical path is 214 days with a project variance of 100, what is the probability that the project will take 224 days or more to complete?

Question

Moriah Roth

Mathematics

21 April, 09:45

A project being analyzed by PERT has 60 activities, 13 of which are on the critical path. If the estimated time along the critical path is 214 days with a project variance of 100, what is the probability that the project will take 224 days or more to complete?

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Answers (1)

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Annie Powers · Answer 1

Step-by-step explanation:

What is given:

Formula to be used Z = (X - mean) / standard deviation

Mean = 214

X = 224

Variance = 100

Formula of Standard deviation = sqrt (variance) = sqrt (100) = 10

So Z = (224 - 214) / 10 = 10/10 = 1

For z = 1, the probability is 0.3413; 34.13% ⇒ The probability of project being completed by 224 days is 34.13%