The conditions and pert times for constructing a network diagram are given below. -Creation conditions: (0-1) It is the initial activity. (1-2) and (1-3) Activities begin together. It follows activity (2-4) (1-2), activity (3-4) (1-3), and ends together. ( 4-5 ) It is the last activity. a-Create the network diagram. b-Calculate the critical path and show it on the diagram. c- If the expiry time is extended by 15 days, how much will the probability of expiry increase?

Practical Management Science
6th Edition
ISBN:9781337406659
Author:WINSTON, Wayne L.
Publisher:WINSTON, Wayne L.
Chapter2: Introduction To Spreadsheet Modeling
Section: Chapter Questions
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The conditions and pert times for constructing a network diagram are given below.
-Creation conditions:
(0-1) It is the initial activity.
(1-2) and (1-3) Activities begin together.
It follows activity (2-4) (1-2), activity (3-4) (1-3), and ends together.
( 4-5 ) It is the last activity.

a-Create the network diagram.
b-Calculate the critical path and show it on the diagram.
c- If the expiry time is extended by 15 days, how much will the probability of expiry increase?

 

z-values table
(
Calculate the values you are looking for by interpolation.
possibility
possibility
0,02
-2
0,98
0,07
0,93
-1,5
-1,3
-1,0
1,5
0,10
0,90
1,3
0,16
0,84
0,82
1,0
0,9
-0,9
-0,8
-0,7
0,18
0,21
0,79
0,8
0,24
0,76
0,7
-0,6
-0,5
0,27
0,31
0,34
0,73
0,69
0,6
0,5
-0,4
0,66
0,4
0,3
-0,3
0,38
0,62
-0,2
-0,1
0,42
0,46
0,50
0,58
0,54
0,2
0,1
0,50
Transcribed Image Text:z-values table ( Calculate the values you are looking for by interpolation. possibility possibility 0,02 -2 0,98 0,07 0,93 -1,5 -1,3 -1,0 1,5 0,10 0,90 1,3 0,16 0,84 0,82 1,0 0,9 -0,9 -0,8 -0,7 0,18 0,21 0,79 0,8 0,24 0,76 0,7 -0,6 -0,5 0,27 0,31 0,34 0,73 0,69 0,6 0,5 -0,4 0,66 0,4 0,3 -0,3 0,38 0,62 -0,2 -0,1 0,42 0,46 0,50 0,58 0,54 0,2 0,1 0,50
--Pert times of activities:
Activities
a
m
b
(0-1)
(1-2 )
(1-3 )
( 2-4)
( 3-4)
( 4-5 )
8
10
24
15
15
15
10
18
20
22
24
38
22
23
48
11
18
31
Transcribed Image Text:--Pert times of activities: Activities a m b (0-1) (1-2 ) (1-3 ) ( 2-4) ( 3-4) ( 4-5 ) 8 10 24 15 15 15 10 18 20 22 24 38 22 23 48 11 18 31
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ISBN:
9781337406659
Author:
WINSTON, Wayne L.
Publisher:
Cengage,