A partially solved PERT problem is detailed in the table below. Times are given in weeks....
A partially solved PERT problem is detailed in the table below. Times are given in weeks.
|
Activity |
Preceding |
Optimistic Time |
Probable Time |
Pessimistic Time |
Expected Time |
Variance |
|
A |
-- |
7 |
9 |
14 |
1.361 |
|
|
B |
A |
2 |
2 |
8 |
0 |
|
|
C |
A |
8 |
12 |
16 |
0 |
|
|
D |
A |
3 |
5 |
10 |
1.361 |
|
|
E |
B |
4 |
6 |
8 |
0 |
|
|
F |
B |
6 |
8 |
10 |
0 |
|
|
G |
C, F |
2 |
3 |
4 |
0 |
|
|
H |
D |
2 |
2 |
8 |
1.000 |
|
|
I |
H |
6 |
8 |
16 |
2.778 |
|
|
J |
G, I |
4 |
6 |
14 |
2.778 |
|
|
K |
E, J |
2 |
2 |
5 |
0.250 |
Calculate the expected time for each activity. Enter these values in the appropriate column in the table above.
Drao the network
b. Which activities form the critical path?
c. What is the estimated time of the critical path?
d. What are the project variance and the project standard deviation?
e. What is the probability of completion of the project after week 40?
Homework Answers
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A partially solved PERT problem is detailed in the table below.
Times are given in weeks....
16) A partially solved PERT problem is detailed in the table below. Times are given in...
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16) A partially solved PERT problem is detailed in the table below. Times are given in weeks. Optimisti Activity Preceding Time Probable Pessimistie Expected Time Time Time Variance 10 8 19 20 - 니다 4-ww0 8 16 14 1 2.79 276 G + - 5 (a) Calculate the expected time and variance for each activity. Enter these values in the appropriate columns in the table above. (b) Which activities form the critical path? (c) What is the estimated time of...
#1
#2
#3
#4
Time Estimates (in weeks) for SOM's Bus Project is given in the following table. Activity Optimistic time Most likely time Pessimistic time A 2 4 6 B 3 5 8 Ic с 4 6 8 D 3 5 10 Please help the project management team to find the standard deviation of Activity D. keep two decimals if not exact, either round up or down is ok. For example, for 0.1346, (0.13 or 13) and (0.14 or.14)...
Use Excel and show
formulas used
From the given table of activities and associated times, create a PERT/CPM diagram and complete the forward and backward passes Immediate Predecessor ActivityDescription Critical Path = Prepare Blue Print Receive Permits Prepare Ground Create Press ReleaseB Cement Work Steel Work Cut Ribbon Ceremony E Total Project Time C,D Pessimistic PERT Time Most Probable 17 12 4 Activit Optimistic 26 13 16 12 12 13
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