1. Develop a network drawing for Towns Construction and determine the critical path. How long is the project expected to take?

2. What is the probability of finishing in 270 days?

3. (Enrichment) If it is necessary to crash to 250 or 240 days, how would Towns do so, and at what costs? As noted in the case, assume that optimistic time estimates can be used as crash times.

Minnesota State University Project Activity Likely Pessimistic Cost/Day 24 45 $1,500 B 60 70 $3,500 Description Predecessor(s) Optimistic Bonding, insurance, 21 tax structuring Foundation, concrete footings A 20 for boxes Upgrading skybox . 50 stadium seating Upgrading walkways, C 36 stairwells, elevators Interior wiring, B 35 lathes Inspection approvals E 1 60 100 $4,000 D 50 100 $1,900 E 40 45 $9,500 F 1.5 2 0 G Plumbing D, F 20 25 36 $2,500 H 15 25 35 $2,000 I Painting G Hardware/AC/metal H workings Tile/carpet/windows H 20 25 60 $2,000 J 8 10 12 $6,000 J 0.5 1 1.5 0 Inspection Final detail work/cleanup L I, K 20 25 60 $4,500