Question: Create the ES EF LS LF (early start early finish late start late finish) for those events Activity Immediate Predecessor m b te Variance -

Create the ES EF LS LF (early start early finish late start late finish) for those events

Activity Immediate Predecessor m b te Variance - A B D > | 2312 Ooll 2 3 4 3 ) 3. 4 5 4 0.11 45 126 1.78 1 315 3 6.44 34 5 5 6 1317 1.78 8 9 10 9 o.ll 4 56 5 0.) 1 A B . C D G H, I 1.78 Here, ma Q: Optimistie time Most likely time bz Pessimistic time te= Expected time te= at4mth 6 Variance = (b-a)2 Standard deviation = Variance co 1201 1 Page No. Date $10 2 STED olo 1811910 $ WIR ostetos w stol 170 ST. 171181 START LOB 13 135 8 a N STAL ST=1 1951 TIS Each node is represented as a ES Activity EF ILS Duration LF E se forly stast time FE- Early Finish time LS = Late Staut time LF = Late finish time ST= Slack time. Possible Path Variance Duration A-D-H-I B-E-H-I B-F-I-I C-G-I-I 2 2 0.66 2 2 1.414 0.81 1.414 11.4014 18 weeks 16 weeks 14 weeks 17 weeks o Since; critical path is the longest path. So, critical path A-D-H-J Activities in critical path = A,D, H, J Expected project completion time =18 weeks Mean project completion time (M)=18 weeks a m t Activity ID A Predecessor None b 3 1 2 2 B None 2 3 4 3 4 variance Standard Deviation 0.111111 0.333333333 0.111111 0.333333333 0.111111 0.333333333 1.777778 1.333333333 None 3 4 5 D A 4 12 6 Activity Details Install Siding Frame walls and roof Install Plumbing Install Gutters and downspouts Lay Flooring Install Electrical Install Wallboard Do interior Planning Install interior fixtures Do grading and Landscaping E 5 3 B 1 3 0.444444 5 11 0.666666667 1.333333333 F B 3 4 5 1.777778 G 5 13 7 1.777778 6 9 H 8 10 9 DE F,G HI 0.111111 0.111111 1.333333333 0.333333333 0.333333333 4 6 5 1 J J 5 1 1 1 1 0 0 45 2

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