project consists of five activities     Optimistic Most Probable Pessimistic Activity Predecessor Time (hr) Time (hr) Time (hr) Floor sanding - 3 4 5 Floor buffing FL sanding 1 2 3 Paint  Ceiling Paint mixing - 0.5 1 1.5 Paint Wall Paint Mix 1 2 9 Paint Ceiling Paint Mix 1 5.5

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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A project consists of five activities

 

 

Optimistic

Most Probable

Pessimistic

Activity

Predecessor

Time (hr)

Time (hr)

Time (hr)

Floor sanding

-

3

4

5

Floor buffing

FL sanding

1

2

3

Paint  Ceiling

Paint mixing

-

0.5

1

1.5

Paint Wall

Paint Mix

1

2

9

Paint Ceiling

Paint Mix

1

5.5

7

What is the Std Deviation of the Critical Path?

 

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