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chapter 10 solution

# chapter 10 solution - Project Scheduling PERT/CPM 2 A E G...

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Project Scheduling: PERT/CPM 2. A B C Finish Start D E F G H I J 3. A B C Finish Start D E F G 6. a. Critical path: A-D-F-H b. 22 weeks c. No, it is a critical activity d. Yes, 2 weeks e. Schedule for activity E: Earliest Start 3 Latest Start 4 Earliest Finish 10 Latest Finish 11 7. a.

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Chapter 10 b. B-D-E-F-H c. 21 weeks Activity Earliest Start Latest Start Earliest Finish Latest Finish Slack Critical Activity A 0 1 3 4 1 B 0 0 6 6 0 Yes C 3 4 5 6 1 D 6 6 11 11 0 Yes E 11 11 15 15 0 Yes F 15 15 18 18 0 Yes G 6 9 15 18 3 H 18 18 21 21 0 Yes 9. a. A-C-E-H-I b. Activity Earliest Start Latest Start Earliest Finish Latest Finish Slack Critical Activity A 0 0 9 9 0 Yes B 0 9 6 15 9 C 9 9 15 15 0 Yes D 9 12 12 15 3 E 15 15 15 15 0 Yes F 15 16 18 19 1 G 18 19 20 21 1 H 15 15 21 21 0 Yes I 21 21 24 24 0 Yes c. Project completion 24 weeks. The park can open within the 6 months (26 weeks) after the project is started. 10. a. Activity Optimistic Most Probable Pessimistic Expected Times Variance A 4 5 6 5.00 0.11 B 8 9 10 9.00 0.11 C 7 7.5 11 8.00 0.44 D 6 9 10 8.83 0.25 E 6 7 9 7.17 0.25 F 5 6 7 6.00 0.11 b. Critical activities: B-D-F Expected project completion time: 9.00 + 8.83 + 6.00 = 23.83. Variance of projection completion time: 0.11 + 0.25 + 0.11 = 0.47
z E T = - = - = 30 30 29 5 2 36 0 33 ( ) .

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chapter 10 solution - Project Scheduling PERT/CPM 2 A E G...

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