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Your father has appointed you as the project manager for the construction of your new family farmhouse. The construction project has seven major activities as listed below. Using the table below, draw the network diagram and derive the earliest completion time TE (or early finish EFT), latest completion time TL (or late finish LFT) and slack for each task. Which tasks are on the critical path? Highlight the critical path on your network diagram. When is the earliest that you can move into the new farmhouse?
Activity
Predecessor
ET (wk)
TE (EFT)
TL (LFT)
Slack
Critical Path?
Permits
A
-
2
Foundation
B
6
Walls
C
5
Plumbing
D
A, C
4
Electrical
E
Landscaping
F
9
Finishing
G
E, F
3
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