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Practical Management Science

Practical Management Science

6th Edition

ISBN:9781337406659

Author:WINSTON, Wayne L.

Publisher:WINSTON, Wayne L.

Chapter2: Introduction To Spreadsheet Modeling

Section: Chapter Questions

Problem 20P: Julie James is opening a lemonade stand. She believes the fixed cost per week of running the stand...

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Which of the following statements about project management is true?
OA. all tasks on the critical path have positive slack
OB. all of the options are false
OC. slack may be either positive or negative
OD. some tasks on a project must have zero slack
OE. all of the above are true
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When crashing a project, the general guideline is to concentrate on the path with?a. The least expensive gradientb. The most expensive gradientc. The task with the most slackd. The task with the least slack
10. The late start time for an activity is equal to the late finish time minus the activity time. True False
A Gantt chart is a project schedule that superimposes project activities on a time line. Part 2 True False
You are managing a software development project. Only 35% of the work has so far been completed, while the planned schedule called for 50% completion by this date. Originally budgeted for $250,000, the team has already spent $150,000 on the project. What is the best way to describe the state of this project? Ahead of schedule, within budget Behind schedule, within budget Ahead of schedule, over budget Behind schedule, over budget
Activity D on a CPM network has predecessors B and C, and has successor F. D has duration 6. B's earliest finish is 18, while C's is 20. F's late startis 26. Which of the following is definitely true? A. D is critical, and has a slack of two days. O B. B is a critical activity. O C. C is completed before B. O D. F is critical, and has zero slack. O E. D has no slack but is not critical.
Consider a project with four activities. Activities A1, A2, and A3 all can start immediately.However, A4 requires the completion of A1, A2, and A3. A1 can take any time between4 and 8 days. A2 can take any time between 2 and 6 days. A3 always takes 5 days. Inaddition to A4, which activity (or activities) has the potential to be on the critical path?a. A1b. A1 and A2c. A2 and A3d. A1, A2, and A3e. None of these options is correct
The extent of time by which an activity can be delayed beyond its earliest start time without extending the project is_____ Oa. Slack time O b. Latest start time Oc Optimistic time Od. Expected start time
12. In general, work packages should not exceed 10 work days. 13. The project structure chosen to manage the project will have little impact on the actual project work to be accomplished. 14. An activity is an element of the project that always requires time but may or may not require resources. 15. The forward pass through a project network determines the critical path. 16. Different activities along the same path can have different total slack. 17. It is possible to have more than one critical path at the same time. 18. Free slack applies to an entire project network. 19. Lags are used to break larger activities into smaller segments so that activities that follow can be started earlier. 20. In a balanced matrix form of project management, the project manager is responsible for defining what needs to be accomplished while the functional managers are concerned with how it will be accomplished.
A simple CPM network has three activities, N, O, and P. N is an immediate predecessor of O and of P. O is an immediate predecessor of P. The activity durations are N = 9, 0 = 7, P = 5. O A. The critical path is N-O-P, duration 21. O B. The network has no critical path. O C. The critical path is O-P, duration 12. D. The critical path is N-P, duration 14. O E. The critical path is N-O-P, duration 7.

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