Question
In: Statistics and Probability
Use the following table to answer questions. Activity a (Optimistic Time Estimate) m (Most Likely Estimate)...
Use the following table to answer questions.
|
Activity |
a (Optimistic Time Estimate) |
m (Most Likely Estimate) |
b (Pessimistic Time Estimate) |
|
A |
3 |
8 |
13 |
|
B |
3 |
6 |
9 |
|
C |
4 |
6 |
8 |
|
D |
7 |
9 |
11 |
|
E |
5 |
7 |
12 |
- What is the expected time for activity c?
- 5.167
- 3
- 4.28
- 6
- What is the variance for activity A?
- 3.33
- 2.77
- 5.31
- .674
- Assume there is one critical path of (A, B, C, E) what is the
project variance?
- 5.583
- 6.313
- 7.421
- 8.667
Solutions
orchestra answered 1 year agoRelated Solutions
Activity Optimistic Time Estimate (weeks) Most Likely Time Estimates (weeks) Pessimistic Time Estimates (weeks) Immediate Predecessor(s)...
Activity
Optimistic Time Estimate
(weeks)
Most Likely Time Estimates (weeks)
Pessimistic Time Estimates (weeks)
Immediate Predecessor(s)
A
3
6
9
none
B
3
5
7
A
C
4
7
12
A
D
4
8
10
B
E
5
10
16
C
F
3
4
5
D, E
G
3
6
8
D, E
H
5
6
10
F
I
5
8
11
G
J
3
3
3
H, I
A.)Using the information given, construct a network diagram
using AON notation....
Consider the following precedence chart: ACTIVITY PRECEDING ACTIVITIES OPTIMISTIC TIME (days) MOST LIKELY TIME (days) PESSIMISTIC...
Consider the following precedence chart:
ACTIVITY
PRECEDING ACTIVITIES
OPTIMISTIC TIME (days)
MOST LIKELY TIME (days)
PESSIMISTIC TIME (days)
A
-
5
10
15
B
-
10
12
14
C
-
10
10
10
D
B,C
2
4
6
E
A
4
8
12
F
A
4
8
12
G
D,E
10
12
14
I
F
4
8
12
J
G
2
4
6
The total slack for activity C is __________
Consider the following precedence chart: ACTIVITY PRECEDING ACTIVITIES OPTIMISTIC TIME (days) MOST LIKELY TIME (days) PESSIMISTIC...
Consider the following precedence chart:
ACTIVITY
PRECEDING ACTIVITIES
OPTIMISTIC TIME (days)
MOST LIKELY TIME (days)
PESSIMISTIC TIME (days)
A
-
5
10
15
B
-
10
12
14
C
-
10
10
10
D
B,C
2
4
6
E
A
4
8
12
F
A
4
8
12
G
D,E
10
12
14
I
F
4
8
12
J
G
2
4
6
The total slack for activity C is __________
a.
0
b.
2
c.
8
d.
4
Consider the following precedence chart: ACTIVITY PRECEDING ACTIVITIES OPTIMISTIC TIME (days) MOST LIKELY TIME (days) PESSIMISTIC...
Consider the following precedence chart:
ACTIVITY
PRECEDING ACTIVITIES
OPTIMISTIC TIME (days)
MOST LIKELY TIME (days)
PESSIMISTIC TIME (days)
A
-
5
10
15
B
-
10
12
14
C
-
10
10
10
D
B,C
2
4
6
E
A
4
8
12
F
A
4
8
12
G
D,E
10
12
14
I
F
4
8
12
J
G
2
4
6
The total slack for activity F is __________
a.
8
b.
4
c.
2
d.
0
QUESTION 7 [18 MARKS) In the following table, optimistic, most likely and pessimistic time estimates have...
QUESTION 7
[18 MARKS)
In the following table, optimistic,
most likely and pessimistic time estimates have been given for each
activity for a project.
Task
Immediate
Predecessor(s)
Time (days)
Optimistic (a)
Most Likely (m)
Pessimistic (b)
A
None
5
7
12
B
None
8
8
8
C
A
2
6
10
D
A,B
12
14
19
E
C,D
6
6
12
F
B,E
3
12
18
G
F
6
8
10
Construct an activity on node network diagram for this...
Given the following project: Activity Predecessor Optimistic (day) Most Likely (day) Pessimistic (day) Start A, B,...
Given the following project:
Activity
Predecessor
Optimistic (day)
Most Likely (day)
Pessimistic (day)
Start
A, B, C
-
-
-
A
D
38
50
62
B
E
90
99
108
C
End
85
100
115
D
F
19
25
31
E
End
91
100
115
F
End
62
65
68
Identify the critical path of the project using activity
expected time.
What is the probability that the critical path will be
completed in 205 days.
activity follows optimistic duration most likely direction pessimistic duration A - 4 6 14 B A,C...
activity
follows
optimistic duration
most likely direction
pessimistic duration
A
-
4
6
14
B
A,C
3
4
5
C
-
3
5
13
D
A,E
12
18
24
E
-
8
10
18
F
A,E
4
6
8
G
B,F
7
8
9
H
G
10
12
14
I
G
5
6
7
J
D,I
5
7
9
Calculate the probability of completing the project between 35
and 40 weeks? [4 pts]
f Answer the project manager’s question:...
Times (days) Activity Optimistic Most Likely Pessimistic Preceding Tasks 1 8 10 13 - 2 5...
Times (days)
Activity
Optimistic
Most Likely
Pessimistic
Preceding Tasks
1
8
10
13
-
2
5
6
8
-
3
13
15
21
2
4
10
12
14
1,3
5
11
20
30
4
6
4
5
8
5
7
2
3
4
5
8
4
6
10
7
9
2
3
4
8,6
Draw the AON Network Diagram
Compute the expected activity time
Using the expected activity times, compute the early start,
early finish, late start, late finish, and...
Activity Predecessor Optimistic Most Likely Pessimistic A 4 7 10 B 2 9 10 C A,B...
Activity
Predecessor
Optimistic
Most Likely
Pessimistic
A
4
7
10
B
2
9
10
C
A,B
2
5
8
D
C
16
19
28
E
C
6
9
24
F
E
1
7
13
G
C
4
10
28
H
D,F
2
5
14
I
G,F
5
8
17
J
H,I
2
5
8
Determine the expected completion
time for each activity.
Construct the AON network for the
activities of this contract and determine the critical path for the
project.
Questions: Which of the following is the type of analysis you would most likely use to...
Questions:
Which of the following is the type of analysis you would most
likely use to assess the impact of arbitrary changes in the
discount rate?
A.Sensitivity analysis
B.Scenario analysis
C.Both
D.Neither
Which of the following is the type of analysis you would most
likely use to assess the impact of an economic recession?
A.Sensitivity analysis
B.Scenario analysis
C.Both
D.Neither
Because most of a company's value comes from the terminal
period, we do not have to worry too much about...
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