Gray and Larsen, Project Management: The Managerial Process, page 44; Exercise 5.
After you have attempted Exercise 5, you can compare your solution with the authors. You can find it on the Student CD that came with your textbook, under the heading "Selected Exercises".
Attempt Gray and Larson Project Management: The Managerial Process Exercise 6 on page 45 and post your solution in the Integration Module Discussion Area. Compare and comment on the solutions of your classmates.