Activity	Immediate Predecessor	Optimistic Time (O.T.)	Most likely Time (M.T.)	Pessimistic Time (P.T.)
A	None	4	6	9
B	A	3	5	7
C	A	4	7	12
D	B	4	8	10
E	C	5	9	15
F	D	4	4	5
G	D, E	3	6	8
H	F	5	6	10
I	G	5	8	11
J	H, I	5	5	5

Use both the longest path method and ES/EF; LS/LF method on the diagram for the following questions and show your answers in the table below.

a. What is the expected project completion time?

b. What are the critical activities?

c. What are the slack values for non-critical activities?

	The Longest Path Method	ES/EF/LS/LF
Expected project finish time
Critical activities
Non-critical activities (slack values)

hello?