Figure 7-5 Duration Estimates
-Consider the activity duration estimates presented in Figure 7-5.Based on the information provided and adopting the PERT conventions to calculate expected activity durations,what is the expected duration of Activity D - "Package Item"?
A) 9 days
B) 9.5 days
C) 10 days
D) 12 days

Question

Figure 7-5 Duration Estimates
-Consider the activity duration estimates presented in Figure 7-5.Based on the information provided and adopting the PERT conventions to calculate expected activity durations,what is the expected duration of Activity D - "Package Item"?​ 
A) 9 days 
B) 9.5 days 
C) 10 days 
D) 12 days

Quizplus · Accepted Answer

The expected duration of an activity in PERT is calculated using the formula: (Optimistic + 4*Most Likely + Pessimistic) / 6. For Activity D, if the optimistic estimate is 8 days, the most likely estimate is 9 days, and the pessimistic estimate is 12 days, the expected duration would be (8 + 4*9 + 12) / 6 = 9.5 days.