The writer is very fast, professional and responded to the review request fast also. Thank you.
Book/movie review
22/08/2022
Project Management Forecasting
Please provide detailed solutions to the following problems/exercises (4 problems/exercises):
1) Draw the network corresponding to the following information. Complete the table, identify the critical path, and specify project completion time.
|
Activity |
Immediate Predecessor(s) |
Time (Weeks) |
|
A |
— |
3 |
|
B |
— |
4 |
|
C |
A |
6 |
|
D |
B |
9 |
|
E |
B |
6 |
|
F |
C,D |
6 |
|
G |
D,E |
8 |
|
H |
G,F |
9 |
|
Activity |
Earliest Start |
Earliest Finish |
Latest Start |
Latest Finish |
Slack |
|
A |
|
|
|
|
|
|
B |
|
|
|
|
|
|
C |
|
|
|
|
|
|
D |
|
|
|
|
|
|
E |
|
|
|
|
|
|
F |
|
|
|
|
|
|
G |
|
|
|
|
|
|
H |
|
|
|
|
|
2) Consider the tasks, durations, and predecessor relationships in the following network. Draw the network and answer the questions that follow.
|
Activity Description |
Immediate Predecessor(s) |
Optimistic (Weeks) |
Most Likely (Weeks) |
Pessimistic (Weeks) |
|
A |
— |
4 |
7 |
10 |
|
B |
A |
2 |
8 |
20 |
|
C |
A |
8 |
12 |
16 |
|
D |
B |
1 |
2 |
3 |
|
E |
D, C |
6 |
8 |
22 |
|
F |
C |
2 |
3 |
4 |
|
G |
F |
2 |
2 |
2 |
|
H |
F |
6 |
8 |
10 |
|
I |
E, G, H |
4 |
8 |
12 |
|
J |
I |
1 |
2 |
3 |
a. What is the expected time for activity B?
b. What is the variance for activity B?
c. Based on the calculation of estimated times, what is the critical path?
d. What is the estimated time of the critical path?
e. What is the activity variance along the critical path?
f. What is the probability of completion of the project before week 42?
3) Develop forecasts for periods 7 through 10 for the demand data in the table using a three period moving average, a weighted moving average using 0.6, 0.3, and 0.1, and exponential smoothing with alpha = 0.7. Use a 6th period forecast of 135 as the starting point for the exponential smoothing technique.
|
Period |
Actual |
MA n=3 |
WMA |
Exp. Smoothing |
|
1 |
64 |
|
|
|
|
2 |
84 |
|
|
|
|
3 |
91 |
|
|
|
|
4 |
97 |
|
|
|
|
5 |
115 |
|
|
|
|
6 |
135 |
|
|
|
|
7 |
137 |
|
|
|
|
8 |
144 |
|
|
|
|
9 |
153 |
|
|
|
|
10 |
171 |
|
|
|
4) Using the data shown in the table, develop a trend line that can be used to predict the demand for time period number 20. What is the prediction equation and what is your forecast for period 20?
|
|
Period |
Demand |
Demand2 |
Period*Demand |
|
|
1 |
16 |
|
|
|
|
2 |
20 |
|
|
|
|
3 |
24 |
|
|
|
|
4 |
27 |
|
|
|
|
5 |
29 |
|
|
|
|
6 |
30 |
|
|
|
|
7 |
32 |
|
|
|
|
8 |
35 |
|
|
|
|
9 |
36 |
|
|
|
|
10 |
38 |
|
|
|
Sums |
55 |
287 |
|
|
The writer is very fast, professional and responded to the review request fast also. Thank you.
Delivering a high-quality product at a reasonable price is not enough anymore.
That’s why we have developed 5 beneficial guarantees that will make your experience with our service enjoyable, easy, and safe.
You have to be 100% sure of the quality of your product to give a money-back guarantee. This describes us perfectly. Make sure that this guarantee is totally transparent.
Read moreEach paper is composed from scratch, according to your instructions. It is then checked by our plagiarism-detection software. There is no gap where plagiarism could squeeze in.
Read moreThanks to our free revisions, there is no way for you to be unsatisfied. We will work on your paper until you are completely happy with the result.
Read moreYour email is safe, as we store it according to international data protection rules. Your bank details are secure, as we use only reliable payment systems.
Read moreBy sending us your money, you buy the service we provide. Check out our terms and conditions if you prefer business talks to be laid out in official language.
Read more