You have just used the network planning model and found the critical path length is 60 days and there are two critical paths.The standard deviation of the first critical path is 10 days and the s.d.of the second critical path is 15 days.The probability that the project will be completed in 70 days or less is equal to (2 decimal accuracy)
A)0.84
B)B.0.25.
C)0.16
D)0.75
E)0.66.

Question

Quizplus · Accepted Answer

The probability of completing the project in 70 days or less is determined by the critical path with the longest standard deviation, which is 15 days. Using the Z-score formula, Z = (X - μ) / σ, where X is 70, μ is 60, and σ is 15, we get Z = (70 - 60) / 15 = 0.67. The probability corresponding to a Z-score of 0.67 is approximately 0.7486, which rounds to 0.75.

You Have Just Used the Network Planning Model and Found