Question 1
Project tasks with uncertain durations (optimistic, likely, pessimistic) in days:
- Design: (4, 6, 9)
- Development: (3, 5, 8)
- Testing: (2, 5, 8)
- Deployment: (2, 5, 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: (4 + 4×6 + 9)/6 = 6.2
- Development: (3 + 4×5 + 8)/6 = 5.2
- Testing: (2 + 4×5 + 8)/6 = 5.0
- Deployment: (2 + 4×5 + 7)/6 = 4.8
2. Total expected duration: 21.2 days
Answer: 21.2 days
1. Calculate expected duration for each task:
- Design: (4 + 4×6 + 9)/6 = 6.2
- Development: (3 + 4×5 + 8)/6 = 5.2
- Testing: (2 + 4×5 + 8)/6 = 5.0
- Deployment: (2 + 4×5 + 7)/6 = 4.8
2. Total expected duration: 21.2 days
Answer: 21.2 days