1-23 Tom Schriber, the director of personnel of Manage- ment Resources, Inc., is in the process of designing a program that its customers can use in the job-finding process. Some of the activities include preparing resumés, writing letters, making appointments to see prospective employers, and researching companies and industries. The information on these activities is shown in the following table: (a) Construct a network for this problem. (b) Determine the expected time and variance for each activity. (c) Determine ES, EF, LS, LF, and slack time for each activity.

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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11-23 Tom Schriber, the director of personnel of Manage-
ment Resources, Inc., is in the process of designing a

program that its customers can use in the job-finding
process. Some of the activities include preparing
resumés, writing letters, making appointments to see
prospective employers, and researching companies
and industries. The information on these activities is
shown in the following table:

(a) Construct a network for this problem.
(b) Determine the expected time and variance for
each activity.
(c) Determine ES, EF, LS, LF, and slack time for
each activity.

DAYS
IMMEDIATE
ACTIVITY
a
m
b
PREDECESSORS
A
8.
10
12
B
6.
7
9.
3
3
4
D
10
20
30
A
E
7
8
F
10
11
B, D, E
G
6.
7
10
B, D, E
H
14
15
16
10
11
13
F
J
6.
7
8
G, H
K
4
7
8
I, J
L
1
4
G, H
|| <
Transcribed Image Text:DAYS IMMEDIATE ACTIVITY a m b PREDECESSORS A 8. 10 12 B 6. 7 9. 3 3 4 D 10 20 30 A E 7 8 F 10 11 B, D, E G 6. 7 10 B, D, E H 14 15 16 10 11 13 F J 6. 7 8 G, H K 4 7 8 I, J L 1 4 G, H || <
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