Given the following project (all times are in days): LO6 Act- Prede- Normal Normal Crash Crash ivity cessor Time Cost Time Cost a — 5 $50 3 $150 b — 4 40 2 200 c b 7 70 6 160 d

a, c 2 20 1 50 e

a, c 3 30 — —

f b 8 80 5 290 g d 5 50 4 180 h

e, f 6 60 3 180

(a) Draw the network (AOA or AON) and find the critical path, time, and cost for an all-normal level of project activity.

(b) Calculate the crash cost-per-day (all activities may be partially crashed).

(c) Find the optimal way of getting an 18-day delivery time. What is the project cost?

(d) Find the optimal way of getting a 16-day delivery time. What is the project cost?

(e) Calculate the shortest delivery time for the project. What is the cost?
(f ) Repeat questions (c), (d), and

(e) using Excel
.