Consider the following project activities:

• Draw the AON and Use the Critical path method to compute the CP, and total slack. [5]
• Use PERT to analyze the chance the delays on CP activities does not push the project duration beyond 30 days. [5]

                      Value of x : 1 

                      Value of y : 4

                      Value of z : 5                                                            

Activity	predecessors	Optimistic	Most likely	Pessimistic
A	-	5	6	8
B	-	3	4	5
C	A	2	3	4
D	B	x-1	x +4	x+6
E	B	1	3	4
F	-	1	10 -z+x	15-z+x
G	E,F	2	3	4
H	C,D	2+y	2+y	2+y
I	G, H	3	4	5