# Project Management: Network Diagrams, Critical Paths & Completion Probability

9. The following table represents a plan for a project:

JOB NO., PREDECESSOR JOB(S), TIMES (DAYS) a m b

1 - 2 3 4

2 1 1 2 3

3 1 4 5 12

4 1 3 4 11

5 2 1 3 5

6 3 1 2 3

7 4 1 8 9

8 5, 6 2 4 6

9 8 2 4 12

10 7 3 4 5

11 9, 10 5 7 8

a. Construct the appropriate network diagram.

b. Indicate the critical path.

c. What is the expected completion time for the project?

e. What is the probability that the project will take more than 30 days to complete?

10. A project has an expected duration of 34 weeks with a critical path variance of 6. What is the

probability the project can be completed in 32 weeks or less?

https://brainmass.com/business/business-math/project-management-network-diagrams-critical-paths-completion-probability-327777

#### Solution Summary

The problem deals with determining the critical path and project diagram for 2 given questions, attached as a Word document with calculations in Excel.