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729 words - 3 pages

Jane Doe
02/10/2014
QAT1 309.3.2-01-06
A. See table 1.1 attachment
B.
1. Expected time to complete:
* a= the optimistic completion time estimate
* b= the pessimistic completion time estimate
* m= the most likely completion time estimate
The activities mean completion time is: t= (a+4m+b)/6

a. The activities completion time variance is: ²= ((b-a)/6)²

* Task F. ...view middle of the document...

LS= task I. LF time=week 30

4. Probability that the project will be done in 34 weeks: ²=²b+²d+²h+²j=
²=1.76+.43+1.34+2.25+.68=6.42
Project standard deviation: 6.42=2.53
Project completion times: Z=Due date-expected date of completionσT = 34 weeks-33.5 weeks2.53 = 0.19 weeks
Z- Value of 0.19= P (z≤.19) = 0.57535

B.
1. Maximum reduction in time: normal weeks-crash weeks=maximum reduction in time
* Task A: 3 weeks-2 weeks= 1 week
* Task B: 7 weeks-5 weeks= 2 weeks
* Task C: 4.5 weeks-3 weeks= 1.5 weeks
* Task D: 11.5 weeks-7 weeks= 4.5 weeks
* Task E: 5 weeks-3 weeks= 2 weeks
* Task F: 10 weeks-6 weeks= 4 weeks
* Task G: 6.5 weeks-5 weeks= 1.5 weeks
* Task H: 11 weeks-8 weeks= 3 weeks
* Task I: 6.5 weeks-4.5 weeks= 2 weeks
* Task J: 3.5 weeks-3 weeks= .5 weeks
2. Crash cost per week
* Task A: 11,200-8,400=2,800/1=\$2,800 per week
* Task B: 40,000-28,000=12,000/2=\$6,000 per week
* Task C: 24,000-18,000=6,000/1.5=\$4,000 per week
* Task E: 16,800-14,000=2800/2=\$1,400 per week
* Task F: 24,000-20,000=4000/4=\$1,000 per week
* Task G: 28,000-18,200=9800/1.5=\$6,533.33 per week
* Task H: 64,000-44,000=20000/3=\$6,666.66 per week
* Task I: 36,000-26,000=10000/2=\$5000 per week
* Task J: 36,000-21,000=15000/.5=\$30,000 per week
C.
1. Activities to be crashed in order to complete the project within 30 weeks: Task F. and task D.
* By crashing Task F. by 3.5 weeks it opened up a new critical path: B, D, H, and J
* Task D. was the next task that would need to be crashed in order for the project to be completed within 30 weeks.
2. Number of weeks each of these activities should be crashed to meet the deadline with the lowest possible increase in cost:
3. Additional crashing cost of the activities identified in part C1:
* Total crash costs: \$3,500+ \$5,333.31= \$8,833.31

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