Question 1
Project tasks with uncertain durations (optimistic, likely, pessimistic) in days:
- Design: (4, 7, 8)
- Development: (3, 4, 5)
- Testing: (4, 6, 9)
- Deployment: (2, 5, 6)
Using the PERT formula (O + 4M + P)/6, what is the expected total project duration?
Step-by-step solution (PERT):
1. Calculate expected duration for each task:
- Design: (4 + 4×7 + 8)/6 = 6.7
- Development: (3 + 4×4 + 5)/6 = 4.0
- Testing: (4 + 4×6 + 9)/6 = 6.2
- Deployment: (2 + 4×5 + 6)/6 = 4.7
2. Total expected duration: 21.5 days
Answer: 21.5 days
1. Calculate expected duration for each task:
- Design: (4 + 4×7 + 8)/6 = 6.7
- Development: (3 + 4×4 + 5)/6 = 4.0
- Testing: (4 + 4×6 + 9)/6 = 6.2
- Deployment: (2 + 4×5 + 6)/6 = 4.7
2. Total expected duration: 21.5 days
Answer: 21.5 days