Activity / Preceding activity A/- BI- C/- D/A E/A F/A G/A,B,E H/A,D,C I/A,F Estimated time (days) Optimis- Mean Pessimis- tic tic 2 6 11 15 2 8 3 9 1 5 2 6 3 11 4 12 4 14 4 13 5 6 3 4 7 8 9 Standard deviation 1 1 1.5 1.5 1 1 2 2 2 You are required to: 1. Draw a network and identify all the paths through the network. 2. Calculate and state the time for completion of the project, assuming that: a) the mean time for each activity is achieved; b) the optimistic time for each activity is achieved; c) the pessimistic time for each activity is achieved; 3. Calculate and state the variance of the critical path in a) and c).
Activity / Preceding activity A/- BI- C/- D/A E/A F/A G/A,B,E H/A,D,C I/A,F Estimated time (days) Optimis- Mean Pessimis- tic tic 2 6 11 15 2 8 3 9 1 5 2 6 3 11 4 12 4 14 4 13 5 6 3 4 7 8 9 Standard deviation 1 1 1.5 1.5 1 1 2 2 2 You are required to: 1. Draw a network and identify all the paths through the network. 2. Calculate and state the time for completion of the project, assuming that: a) the mean time for each activity is achieved; b) the optimistic time for each activity is achieved; c) the pessimistic time for each activity is achieved; 3. Calculate and state the variance of the critical path in a) and c).
Practical Management Science
6th Edition
ISBN:9781337406659
Author:WINSTON, Wayne L.
Publisher:WINSTON, Wayne L.
Chapter2: Introduction To Spreadsheet Modeling
Section: Chapter Questions
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Transcribed Image Text:Activity /
Preceding
activity
A/-
B/-
C/-
D/A
E/A
F/A
G/A,B,E
H/A,D,C
1/A,F
Estimated time (days)
Optimis- Mean Pessimis-
tic
tic
2
6
11
15
2
8
3
9
1
5
2
6
3
11
4
12
4
14
4
13
5
6
3
4
7
8
9
Standard
deviation
1
1
1.5
1.5
1
1
222
You are required to:
1. Draw a network and identify all the paths
through the network.
2. Calculate and state the time for completion of
the project, assuming that:
a) the mean time for each activity is achieved;
b) the optimistic time for each activity is
achieved;
c) the pessimistic time for each activity is
achieved;
3.
Calculate and state the variance of the critical
path in a) and c).
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