Question 1
Project tasks with uncertain durations (optimistic, likely, pessimistic) in days:
- Design: (3, 5, 7)
- Development: (2, 3, 5)
- Testing: (2, 4, 6)
- Deployment: (3, 6, 7)
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: (3 + 4×5 + 7)/6 = 5.0
- Development: (2 + 4×3 + 5)/6 = 3.2
- Testing: (2 + 4×4 + 6)/6 = 4.0
- Deployment: (3 + 4×6 + 7)/6 = 5.7
2. Total expected duration: 17.8 days
Answer: 17.8 days
1. Calculate expected duration for each task:
- Design: (3 + 4×5 + 7)/6 = 5.0
- Development: (2 + 4×3 + 5)/6 = 3.2
- Testing: (2 + 4×4 + 6)/6 = 4.0
- Deployment: (3 + 4×6 + 7)/6 = 5.7
2. Total expected duration: 17.8 days
Answer: 17.8 days