Create Gantt chart and estimate critical path
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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![In the following table there are seven tasks, labeled a through g. Some tasks can be done concurrently (a and b)
while others cannot be done until their predecessor task is complete (c and d cannot begin until a is complete).
Additionally, each task has three time estimates: the optimistic time estimate (O), the most likely or normal time
estimate (M), and the pessimistic time estimate (P). The expected time (TE) is estimated.
Create Gantt chart and estimate critical path
Time estimates
Expected time
(TE)
Activity
Predecessor
Opt. (0)
Normal (M)
Pess. (P)
a
2
4
6.
4
b
3
9.
5
a
4
7
5
d
a
4
10
6.
e
b, c
4
5
7
f
d
3
8.
4
g
3
8.
e
Note:
- you can neglect time estimated and calculate only Expected time
- all times in days](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F24f9394a-a341-4b09-b7b0-01726537c0e6%2Fd0a2d24b-d265-41ee-b358-4429587ab4ca%2Fgu6xdpkd_processed.jpeg&w=3840&q=75)
Transcribed Image Text:In the following table there are seven tasks, labeled a through g. Some tasks can be done concurrently (a and b)
while others cannot be done until their predecessor task is complete (c and d cannot begin until a is complete).
Additionally, each task has three time estimates: the optimistic time estimate (O), the most likely or normal time
estimate (M), and the pessimistic time estimate (P). The expected time (TE) is estimated.
Create Gantt chart and estimate critical path
Time estimates
Expected time
(TE)
Activity
Predecessor
Opt. (0)
Normal (M)
Pess. (P)
a
2
4
6.
4
b
3
9.
5
a
4
7
5
d
a
4
10
6.
e
b, c
4
5
7
f
d
3
8.
4
g
3
8.
e
Note:
- you can neglect time estimated and calculate only Expected time
- all times in days
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