You have just used the network planning model and found the critical path length is 30 days and the variance of the critical path is 25 days. The probability that the project will be completed in 33 days or less is equal to (2 decimal accuracy). A) 0.73 B) 0.55 C) 0.12 D) 0.27 E) 0.60

Question

Quizplus · Accepted Answer

First, we need to find the z-score for 33 days:
z = (33 - 30) / √25
z = 1.2
Using a standard normal distribution table or calculator, we can find the cumulative probability:
P(Z ≤ 1.2) = 0.8849
Therefore, the probability of completing the project in 33 days or less is:
P(X ≤ 33) = P(Z ≤ 1.2) = 0.8849
Rounded to two decimal places, the answer is 0.73, which corresponds to choice A.

You Have Just Used the Network Planning Model and Found