Question: A small project is composed of 7 activities whose estimated times are listed below. Activity relationships are identified by beginning (i) and ending (j) node numbers. Use Activity on Arc model.

Node Estimated Duration (Days)

Activity i. j. Opt. Most Likely Pessimistic

A 1 2 1 1 7
B 1 3 1 4 7
C 1 4 2 2 8
D 2 5 1 1 1

E 3 5 2 5 14

F 4 6 2 5 8

G 5 6 3 6 15

a. Draw the PERT network using Activity on Arrow.

b. What is the PERT expected duration, ES, EF, LS, LF for each node?

c. How likely are you to finish the project in 20 days?

d. What would you recommend to improve the likelihood of meeting the goal?