Question: For Activity A, the optimistic cost estimate is $5,000, the most likely estimate is $15,000, and the pessimistic estimate is $21,000. What is the PERT

For Activity A, the optimistic cost estimate is $5,000, the most likely estimate is $15,000, and the pessimistic estimate is $21,000. What is the PERT estimate and standard deviation?

E = ($5,000 + (4 * $15,000) + $21,000) / 6 = $14,333

???? = (25 – 10) / 6 = $2,667

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