Dave Fletcher was able to determine the activity times for constructing his laser scanning machine. Fletcher would like to determine ES, EF, LS, LF, and slack for each activity. The total project completion time and the critical path should also bedetermined. Here are the activity times:Activity Time (weeks) Immediate Predecessor(s) Activity Time (weeks) Immediate Predecessor(s)AE4ВВ8F6В4AG10С, Е3AH7D,FDave's earliest start (ES) and earliest finish (EF) are:

Answered: Dave Fletcher was able to determine the…

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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Question

Dave Fletcher was able to determine the activity times for constructing his laser scanning machine. Fletcher would like to determine ES, EF, LS, LF, and slack for each activity. The total project completion time and the critical path should also be
determined. Here are the activity times:
Activity Time (weeks) Immediate Predecessor(s) Activity Time (weeks) Immediate Predecessor(s)
A
E
4
В
В
8
F
6
В
4
A
G
10
С, Е
3
A
H
7
D,F
Dave's earliest start (ES) and earliest finish (EF) are:

Expert Solution

Step 1 Introduction:

For each activity, I have Time data and immediate predecessors' data, I would determine the precedence network diagram, from the diagram, we could evaluate the earliest start and earliest finish information.

The precedence network diagram is prepared using the forward path analysis and backward path analysis, The detailed calculations are shown in the next section.