Class Exercise Predecessoi A A B,C DE . Activity A: Clear east half B: Clear west half C: Excavate east half D: Excavate west half E: Backfill with classified fill, east half F: Backfill with classified fill, west half G: Purchase pipe H: Fabricate pipe I: Deliver pipe J: Install drainage piping, east half K: Install drainage piping, west half L: Contract for surface gravel M: Approval for surface gravel N: Place surface gravel, east half 0: Place surface gravel, west half P: Final grading G H E,I F,) L. JM KAN Three Time Estimates Activity TE VE A B C D E F G Time Estimates (days) m b 10 10 10 8 8 8 13 15 17 18 20 23 16 20 25 8 10 13 6 10 12 16 18 18 12 15 18 10 12 14 7 9 12 5 6 15 18 19 4 6 8 4 6 8 2 2 2 H I J L M N o P Determine 1. The probability that the project will finish by the end of day 74 2. The probability that the project will finish by the end of day 78 3. The probability that the project will finish before day 70 4. The probability that the project will finish on the 74th day 5. The probability that the project will finish no later than the 78th day 6. The probability that the project will finish at least 2 days early 7. The probability that the project will finish at least 2 days late 8. The probability that the project will finish on the 74th day + 1 day 9. The completion date with at least a 90% confidence level