Operations Research : Applications and Algorithms
4th Edition
ISBN: 9780534380588
Author: Wayne L. Winston
Publisher: Brooks Cole
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Case 1:
As a consulting engineer you were asked to monitor a water supply project financed by an NGO and handled by local water users committee at Natore district. The project must be completed by the end of December 2020; otherwise the donor would stop the payment. When you visited the site at the middle of May 2020, you found that the project was not completed. The users committee requested to submit the completion report so that they could finish the work after some time and will be beneficial to 100 household of the project. Answer the following questions.Question:
3) Discuss different options for the engineer in reporting the project progress status, considering personal integrity.
The projected number of defects submitted, resolved, and remaining open inthe first four weeks of a test project are given in the upper half of Table 13.18.The actual numbers of submitted and resolved defects are shown in the lowerhalf of the table. Calculate the actual number of open defects?
A company specializing in custom-engineered equipment is planning to submit a proposal to the National
5.
Aeronautics and Space Administration (NASA) to build an assembled component for a new space station that NASA plans to
launch into orbit. The winning proposal will be selected on the basis of both cost and timely delivery. Also, there will be a
penalty clause in the NASA contract for late delivery. The company has developed the schedule of activities that are required
to produce the assembled component. The activities and precedence requirements are presented in the table below. Three time
estimates (in weeks) are given for each activity: optimistic time, most likely time, and pessimistic time. (a) What completion
time should the company specify in its proposal in order to be 85% sure that it will complete the project on time?
ij
Activity
Immediate predecessor
Optimistic time (weeks)
a
b
d.
h
b
e, d
d e,f f,g
h, i
a
a
a
15
8
10
20
17
4
10
Most likely time (weeks)
24
16
10
14
26
23…
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Operations Research : Applications and Algorithms
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