
Practical Management Science
6th Edition
ISBN: 9781337406659
Author: WINSTON, Wayne L.
Publisher: Cengage,
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Transcribed Image Text:22.28
A learn.uph.edu
9-8. A marketing firm is planning to conduct a survey of a seg-
ment of the potential product audience for one of its cus-
tomers. The planning process for preparing to conduct the
survey consists of six activities with procedure relation-
ships and activity time estimates as follows:
Time
Activity
Estimates
Activity Description
Predecessor
(days)
Determine survey objectives
Select and hire personnel
a
3
a
3
Design questionnaire
Train personnel
a
5
d
b, c
4
Select target audience
Make personnel assignments
e
3
d, e
a. Determine all paths through the network from node a to
node f and the duration of each, and indicate the critical
path.
b. Determine the earliest and latest activity start and finish
times.
c. Determine the slack for each activity.
2.
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