AC PREC. ACT TIME ESTIMATES (days) tmi te E, C,F 1. Construct a PERT network. (2

Question

AC PREC. ACT TIME ESTIMATES (days) tmi te E, C,F 1. Construct a PERT network. (20 points INOTE: This is the most crucial part of the exercise. Make sure you have the correct network before proceeding to the next sections.1 2. By using Es, Er, Lr, LS, find the slack of each activity and the critical path. 20 points) >. rind the completion time () and the standard deviation (o) for the project-round off the standard deviation to the neareat hundredth: two decimal places. ão points) what is the completion time at 68% and 95% confidence levels? Czoports) 5. what is the likelihood of this project being completed in les than 15 days? do points) 6. Between l6 and 1s days? (o points)

Explanation / Answer

2)

Critical Path

4)

5)

Hence 11.5%

6) Between 16 and 18 days

Hence 45%

(o+p+4m) (p-o)/6 Activity Pre O M P Expected Std Dev ES EF LS LF Critical Stack A NA 2 2 2 2 0.00 0 2 0 2 Yes 0 B A 2 4 6 4 0.67 2 6 2 6 Yes 0 C A 1 3 5 3 0.67 2 5 10 13 8 D A 4 5 6 5 0.33 2 7 5 10 3 E B 6 7 8 7 0.33 6 13 6 13 Yes 0 F D 1 3 5 3 0.67 7 10 10 13 3 G E,C,F 2 4 6 4 0.67 13 17 13 17 Yes 0

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