Consider a project for which the following activities and time estimates in weeks apply activity To tm tp 1-2 3 5 8 1-3 2 3 5 1-5 2 3 4 2-3 1 2 5 2-6 7 8 9 3-4 1 3 6 3-5 2 4 6 4-5 1 2 4 5-6 1 2 3

Practical Management Science
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Chapter2: Introduction To Spreadsheet Modeling
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Problem 20P: Julie James is opening a lemonade stand. She believes the fixed cost per week of running the stand...
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Consider a project for which the following activities and time estimates in weeks apply

activity

To

tm

tp

1-2

3

5

8

1-3

2

3

5

1-5

2

3

4

2-3

1

2

5

2-6

7

8

9

3-4

1

3

6

3-5

2

4

6

4-5

1

2

4

5-6

1

2

3

 

 

  1. Draw the project network
  2. Compute the expected time and variance for each activity

iii. Compute slack for each event and find the critical path

  1. Find the length of the critical path and the project duration
  2. Approximate the probability that activity 3 – 4 will have positive slack. What is the

managerial implication of that probability?

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