Coleman Rich Control Devices, Inc., produces custom-built relay devices for auto makers. The most recent project undertaken by Rich requires 14 different activities. Rich's managers would like to determine the total project completion time (in days) and those activities that fie along the critical path. The appropriate data are shown in the following table Time (days) m Activity A B C D E F G . 4 1 6 5 1 2 1 Time (days) m 6 2 6 8 b 7 3 6 11 16 Immediate Predecessor(s) Activity H 6 8 W A A B.C D D 9 3 7 days (round your response to two decimal places) 1 J K L M N a 4 1 2 8 2 1 6 4 0 5 0 4 2 0 b 6 B 7 11 0 3 10 Immediate Predecessor(s) EF G.H J a) The expected completion time of the project The activities that represent the projects critical path are b) If the time to complete the activities on the critical path is normally distributed, then the probability that the critical path will be finished in 53 days or less (round your response to two decimal places) Using the standard normal table, the number of days that would result in 99% probability of completion days (round your response to two decimal places)
Coleman Rich Control Devices, Inc., produces custom-built relay devices for auto makers. The most recent project undertaken by Rich requires 14 different activities. Rich's managers would like to determine the total project completion time (in days) and those activities that fie along the critical path. The appropriate data are shown in the following table Time (days) m Activity A B C D E F G . 4 1 6 5 1 2 1 Time (days) m 6 2 6 8 b 7 3 6 11 16 Immediate Predecessor(s) Activity H 6 8 W A A B.C D D 9 3 7 days (round your response to two decimal places) 1 J K L M N a 4 1 2 8 2 1 6 4 0 5 0 4 2 0 b 6 B 7 11 0 3 10 Immediate Predecessor(s) EF G.H J a) The expected completion time of the project The activities that represent the projects critical path are b) If the time to complete the activities on the critical path is normally distributed, then the probability that the critical path will be finished in 53 days or less (round your response to two decimal places) Using the standard normal table, the number of days that would result in 99% probability of completion days (round your response to two decimal places)
Practical Management Science
6th Edition
ISBN:9781337406659
Author:WINSTON, Wayne L.
Publisher:WINSTON, Wayne L.
Chapter2: Introduction To Spreadsheet Modeling
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Transcribed Image Text:Coleman Rich Control Devices, Inc., produces custom-built relay devices for auto makers. The most recent project undertaken by Rich requires 14 different activities. Rich's managers would like to
determine the total project completion time (in days) and those activities that lie along the critical path. The appropriate data are shown in the following table
Activity
A
B
C
D
E
Fi
G
a
4
1
6
5
1
2
1
Time (days)
m
6.
2
6
8
9
3
7
b
7
3
6
11
18
6
8
Immediate
Predecessor(s)
A
A
B.C.
D
D
Activity a
H
1
J
K
L
M
N
days (round your response to two decimal places)
P
4
1
2
8
2
1
6
Time (days)
m
4
6
5
9
4
2
8
Immediate
b Predecessor(s)
6
E.F
G.H
B
7
1
11
0
3
10
I
J
K
LM
a) The expected completion time of the project
The activities that represent the projects critical path are
b) If the time to complete the activities on the critical path is normally distributed, then the probability that the critical path will be finished in 53 days or less=fround your response to two
docimal places)
c) Using the standard normal table, the number of days that would result in 99% probability of completiondays (round your response to two decimal places)
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