Tom Heaton is a project manager with a project management company in Sudbury. The company has landed a major project. The activities that must be performed for the project, their immediate predecessors and estimated activity times (in weeks) are shown in the table below.

Activity	Precedent	Duration (weeks)
A	--	2
B	A	6
C	A	3
D	B	4
E	C, D	5
F	D	4
G	F	3
H	E, G	2

1. Clearly show the values for the ES, EF, LS, LF and Slack Time for All activities.
2. Determine which path is the critical path? and, how long?