The following table lists the activities needed to complete a project. The first column lists the...

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The following table lists the activities needed to complete aproject. The first column lists the activities and the â€œfollowsâ€column shows which other activity or activities, (if any), must becompleted before these activities can start. The remaining columnsgive three estimates of the activity duration; the mean durationcalculated from these estimates and standard deviation assuming abeta distribution of activity duration.
Activity
Follows
Estimates of durations (days)
Optimistic
Most likely
Pessimistic
A
--
3
6
15
B
A
8
14
26
C
A
1
2
9
D
B
2
5
14
E
C
5
7
21
F
D
2
4
12
G
B, E
6
9
18
H
F
1
3
5
I
D, G
2
3
10
J
G 5
7
15

e) What is the probability that the project will be completedbetween 38 and 45 days? Show your workings! (4 points)
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f) Answer the project managerâ€™s question:
â€œI want to tell the client a project length which I am 89.97% surethat we can meet _- What figure should I give them?\" (4points)

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AnswerGiven ThatThe following table lists the activities needed to complete aproject The first column lists the activities and the followscolumn shows which other activity or activities if any See Answer

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A	--	3	6	15
B	A	8	14	26
C	A	1	2	9
D	B	2	5	14
E	C	5	7	21
F	D	2	4	12
G	B, E	6	9	18
H	F	1	3	5
I	D, G	2	3	10
J	G	5	7	15