Task	Predecessors	Duration
A	-	3 weeks
B	-	4
C	A	2
D	C	5
E	B	7
F	D, E	1
G	D	4
H	F, G	5

Draw an AOA (Activity on Arrow) diagram of the project.

Indicate the ES (Earliest Start), EF (Earliest Finish), LS (Latest Start), LF (Latest Finish) times for each of the activities A through H.

Tabulate the slacks of the tasks.

What is the critical path(s)

How many weeks does it take to complete the project according to the critical path analysis?

An activity has three estimates: Optimistic = 10 weeks, Pessimistic = 25 weeks, Most-Likely = 15 weeks. What is the estimate according to the three-point estimation method for this activity? What is the standard deviation for this activity?

A project node has ES=21 weeks, LS=37 weeks, LF=39 weeks. Compute the duration, float (slack), and EF for this node.