Practical Management Science
Practical Management Science
6th Edition
ISBN: 9781337406659
Author: WINSTON, Wayne L.
Publisher: Cengage,
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PleAse answer for actives A-k
←
Kelle Carpet and Trim installs carpet in commercial offices. Peter Kelle has been very concerned with the amount of
time it took to complete several recent jobs. Some of his workers are very unreliable. A list of activities and their
optimistic completion time, the most likely completion time, and the pessimistic completion time (all in days) for a
new contract are given in the following table:
Activity
A
BCDEFGH-X
a
5
Time (days)
+41632SOSIS
527539LTC7
10
m
5
11
16
Immediate
b Predecessor(s)
9
6387432981
11
" m m o O | ||
B, D
BAALGCM
A, E
A, E
H, I
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Transcribed Image Text:← Kelle Carpet and Trim installs carpet in commercial offices. Peter Kelle has been very concerned with the amount of time it took to complete several recent jobs. Some of his workers are very unreliable. A list of activities and their optimistic completion time, the most likely completion time, and the pessimistic completion time (all in days) for a new contract are given in the following table: Activity A BCDEFGH-X a 5 Time (days) +41632SOSIS 527539LTC7 10 m 5 11 16 Immediate b Predecessor(s) 9 6387432981 11 " m m o O | || B, D BAALGCM A, E A, E H, I
-------
ABCDEFI - K
А
4
4
1
5
0543
10
14
Activity
A
39156 WORN NORS
11
SE38N
9
6
7
432981
11
||||00444OOM
B, D
A, E
A, E
H, I
This exercise contains only part a.
a) Based on the activity time estimates, the expected times and variance for each of the activities are:
(Round your responses to two decimal places.)
Expected Time Variance
1
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Transcribed Image Text:------- ABCDEFI - K А 4 4 1 5 0543 10 14 Activity A 39156 WORN NORS 11 SE38N 9 6 7 432981 11 ||||00444OOM B, D A, E A, E H, I This exercise contains only part a. a) Based on the activity time estimates, the expected times and variance for each of the activities are: (Round your responses to two decimal places.) Expected Time Variance 1
Expert Solution
Check Mark
Step 1

Formula used-Expected time =a+4m+b6Variance=(b-a)236

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