Consider the following information about a small project:

Task	Duration Estimates		Immediate Predecessors
A	4	days	None
B	5	days	A
C	2	days	B
D	2	days	A
E	1	day	B & D
F	10	days	E & C

b-2. Identify the earliest start and finish, and slack for each task. (Leave no cells blank - be certain to enter "0" wherever required.)

Task	Immediate Predecessors	Earliest Start (ES)	Earliest Completion (EC)
A	None
B	A
C	B
D	A
E	B, D
F	C, E

Task	Immediate Successors	Latest Completion	Latest Start (LS)	Slack
F	None
E	F
D	E
C	F
B	C, E
A	B, D