a)Fill in the network diagram below

Task	Time (wk)	Predecessor	Min Time with Crashing	Crashing cost/wk	ES	EF	LS	LF	Slack	Critical (Y/N)	Free Slack
A	5	-	4	$50
B	3	-	2	$10
C	6	A	3	$2,500
D	3	A	1	$10
E	8	C,B	7	$200
F	3	D,E	1	$1,000
G	4	F	4	-
Task	Time (wk)	Predecessor	Min Time with Crashing	Crashing cost/wk	ES	EF	LS	LF	Slack	Critical (Y/N)	Free Slack
A	5	-	4	$50
B	3	-	2	$10
C	6	A	3	$2,500
D	3	A	1	$10
E	8	C,B	7	$200
F	3	D,E	1	$1,000
G	4	F	4	-

b-Clearly List your critical path

c-What is the shortest time need to complete the project (without expediting)?

d-To expedite the project by two weeks, which activities will you crash? Crashing cost?