Question: Question 1 (5 points) : ABC System is a software company on business intelligence system. The company has a new project can be represented by
Question 1 (5 points): ABC System is a software company on business intelligence system. The company has a new project can be represented by 8 activities These activities are provided in the table below with the corresponding precedence relations.
| Activity | Description | Preceding | Optimistic | Most Likely | Pessimistic | Expected Time | Variance |
| A | System model design | -- | 6 | 9 | 12 |
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| B | Purchase of equipment for productions run | - | 6 | 7 | 11 |
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| C | Development of prototype model | -- | 6 | 10 | 14 |
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| D | Quality Assurance Testing | A, C | 3 | 5 | 7 |
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| E | Revision of design | D | 4 | 6 | 11 |
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| F | UAT Testing | E | 6 | 8 | 10 |
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| G | Initial productions run | B, F | 2 | 4 | 6 |
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| H | Staff training | G | 6 | 6 | 6 |
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a. (2 points) Complete the network diagram
b. (1 point) Find the critical path and expected completion time for this project.
c. (1 point) Determine the standard deviations of project:
d. (1 point) What is the probability that the project will be completed in 41 days?
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