CrayComputerCorporationisdevelopinganewsupercomputer.Thetablebelowliststhe projectactivities,normal andcrashtimes,andnormalandcrashcosts.

		Immediate	Time(weeks)	Cost($1,000s)
Activity	Description	Predecessor(s)	Normal	Crash	Normal	Crash
A	Design		3	3	200	200
B	Evaluateequipment	A	6	4	80	100
C	Writemethodsreport	A	5	3	50	80
D	Buildprototype	A	7	4	125	170
E	Writeequipmentreport	C	2	1	20	30
F	Testprototype	B, D	3	2	140	160
G	Writefinalreport	E,F	3	2	45	105

Question. Drawanactivitynetworkdiagramforthisproject.Usingthenormalactivitytimes,determinetheearlystart, earlyfinish,latestart,andlatefinishtimesforeachactivity.Recordthesevaluesinthediagram.