123456789 Activity Lay foundation. Dig hole for scale Insert scale bases Erect frame Complete building Insert scales Insert display cases Put in office equipment Finishing touches Optimistic 8 5 13 10 11 4 242 Times Most Likely 10 6 15 12 20 5 3 6 3 Pessimistic 13 8 21 14 30 8 4 10 4 Preceding Tasks 2 1,3 4 5 5 7 8,6

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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Using the table above please indicate:

  1. The expected duration for the activities #1 & #5 (using PERT estimation)
  2. Which activities the project start with?
  3. Using duration of 3 for activity #9 and suppose that the total duration of the project is 50. What is the Latest Time to finish and to start for the direct preceding activities of activity #9?
123456789
Activity
Lay foundation.
Dig hole for scale
Insert scale bases
Erect frame
Complete building
Insert scales
Insert display cases
Put in office equipment
Finishing touches
Optimistic
8
5
13
10
11
4
242
Times
Most Likely
10
6
15
12
20
5
3
6
3
Pessimistic
13
8
21
14
30
8
4
10
4
Preceding Tasks
2
1,3
4
5
5
7
8,6
Transcribed Image Text:123456789 Activity Lay foundation. Dig hole for scale Insert scale bases Erect frame Complete building Insert scales Insert display cases Put in office equipment Finishing touches Optimistic 8 5 13 10 11 4 242 Times Most Likely 10 6 15 12 20 5 3 6 3 Pessimistic 13 8 21 14 30 8 4 10 4 Preceding Tasks 2 1,3 4 5 5 7 8,6
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