Question: LS and LF are wrong but I don't know why. Could you please explain to me Reference Activity Duration (weeks) Predecessors Weeks activity can be

LS and LF are wrong but I don't know why. Could you please explain to me

Reference Activity Duration (weeks) Predecessors Weeks activity can be crashed Weekly cost of crash ES EF LS LF Slack

A Hire workers 8 None 3 2,000 0 8 -4 4
B Install equipment 6 None 1 4,000 0 6 -2 4
C Order materials 3 None 1 1,000 0 3 7 10
D Test equipment 4 B 2 2,500 6 10 6 10
E Train workers 6 A,B 2 5,000 8 14 4 10
F Pilot Testing 5 C,D 3 3,000 10 15 10 15

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