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Case 5.2-P-L-No - ACTIVITY TIMES 3-TIME ESTIMATE Activity...

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ACTIVITY TIMES IMMEDIATE 3-TIME ESTIMATE PREDECESSORS Activity Node a m b μ σ Node Predecessor Measure Land A 5 8 15 B A Stake Layout B 7 12 20 C A Environmen Anal C 10 17 31 D B Foundation D 12 22 38 E C Construction Papers E 6 13 21 F C Building Framework F 11 15 27 G C Gas Line G 9 18 22 H B Electrical Wiring H 25 27 31 H E Interior Plumbing I 18 20 35 I B Wall Construction J 12 25 32 I E Insulation K 10 23 33 J D Drywall L 25 30 35 J H Roofing M 3 10 20 K F Restaurant Construc N 25 40 55 K I Swimming Pool O 9 20 40 L F Fencing P 6 10 21 L I Telephone Lines Q 12 22 40 M J Sewers R 26.44 31.73 47.6 M K Snack Bar S 10 20 30 N G Stream Building T 45 55 65 O G Outside Lighting U 8 12 15 O J Parking Lots V 3 5 7 O K Drainage W 5 10 18 O L Safety Inspection X 9 15 25 P G Landscping Y 6 24 40 P J Final Permits Z 10 15 25 P K P L Q M Q O R M R O S N T N U P U Q U S V P V Q V S W P W Q W S W T X U X W Y R Y V Z X Z Y KNOWN μ and σ
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CRITICAL PATH ANALYSIS MEAN 186.66 STANDARD DEVIATION* 10.47 * Assumes all critical activities are on one critical path VARIANCE* 109.57 PROBABILITY COMPLETE BEFORE 195 = 0.787118 Acitivty Node Critical μ σ ES EF LS LF Slack Measure Land A * 8.67 1.67 2.78 0 8.67 0 8.67 0 Stake Layout B 12.5 2.17 4.69 8.67 21.17 27.5 40 18.83 Environmen Anal C * 18.17 3.5 12.25 8.67 26.83 8.67 26.83 0 Foundation D 23 4.33 18.78 21.17 44.17 45.17 68.17 24 Construction Papers E * 13.17 2.5 6.25 26.83 40 26.83 40 0 Building Framework F 16.33 2.67 7.11 26.83 43.17 45.83 62.17 19 Gas Line G 17.17 2.17 4.69 26.83 44 32.5 49.66 5.66 Electrical Wiring H 27.33 1 1 40 67.33 40.83 68.17 0.83 Interior Plumbing I * 22.17 2.83 8.03 40 62.17 40 62.17 0 Wall Construction J 24 3.33 11.11 67.33 91.33 68.17 92.17 0.83 Insulation K 22.5
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