The information in the table below is available for a large fund-raising project.
a. Determine the critical path and the expected completion time of the project.
b. Plot the total project cost, starting from day 1 to the expected completion date of the project, assuming the earliest start times for each activity. Compare that result to a similar plot for the latest start times. What implication does the time differential have for cash flows and project scheduling?
Activity Activity Time (days) Activity Costs ($) Immediate Predecessor(s)
A 3 100 -
B 4 150 -
C 2 125 A
D 5 175 B
E 3 150 B
F 4 200 C,D
G 6 75 C
H 2 50 C,D,E
I 1 100 E
J 4 75 D, E
K 3 150 F,G
L 3 150 G, H, I
M 2 100 I, J
N 4 175 K, M
O 1 200 H, M
P 5 150 N, L, O