Question 1
Project tasks with uncertain durations (optimistic, likely, pessimistic) in days:
- Design: (4, 7, 8)
- Development: (4, 5, 7)
- Testing: (3, 6, 8)
- Deployment: (3, 4, 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 + 4×7 + 8)/6 = 6.7
- Development: (4 + 4×5 + 7)/6 = 5.2
- Testing: (3 + 4×6 + 8)/6 = 5.8
- Deployment: (3 + 4×4 + 7)/6 = 4.3
2. Total expected duration: 22.0 days
Answer: 22.0 days
1. Calculate expected duration for each task:
- Design: (4 + 4×7 + 8)/6 = 6.7
- Development: (4 + 4×5 + 7)/6 = 5.2
- Testing: (3 + 4×6 + 8)/6 = 5.8
- Deployment: (3 + 4×4 + 7)/6 = 4.3
2. Total expected duration: 22.0 days
Answer: 22.0 days