Z ZAID ABDUL RAB RAB AL BALUSHI
Status Finished
Started Sunday, 8 December 2024, 10:04 PM
Completed Monday, 9 December 2024, 2:52 AM
Duration 4 hours 47 mins
Grade 1.77 out of 5.00 (35.33%)
Question 1
Partially correct
Mark 0.60 out of 2.00
v1 (latest)
The activity details and their predecessors are given below use the PERT method to calculate the expected time (1 Marks) and construct the
network diagram (1 Mark) to find the critical path of the activity (0.5 Mark) also indicate the project duration (0.5 Mark) with the standard
deviation (1 Mark).
Activity Predecessors the expected Optimistic Most likely Pessimistic
time
time time time
(to) (tm) (tp)
A -- 10 6 28
B -- 1 1 1
C A 9 17 15
D B 6 24 6
E A 28 22 32
F C,G 9 14 42
G D 6 6 3
H B 9 6 25
I E,F 7 15 8
J G,H 5 8 16
Note: Use upto 3 decimal in your answer and enter your answer in the box, also kindly upload your worked out sheet below.
Enter the expected activity time for A. 10.33
One possible correct answer is: 10.333333333333
Enter the expected activity time for B. 1
One possible correct answer is: 1
Enter the expected activity time for C. 15.33
One possible correct answer is: 15.333333333333
Enter the expected activity time for D. 18
One possible correct answer is: 18
Enter the expected activity time for E. 24.66
One possible correct answer is: 24.666666666667
Enter the expected activity time for F. 17.83
One possible correct answer is: 17.833333333333
Enter the expected activity time for G. 5.5
One possible correct answer is: 5.5
Enter the expected activity time for H. 9.666
One possible correct answer is: 9.6666666666667
Enter the expected activity time for I. 12.5
One possible correct answer is: 12.5
Enter the expected activity time for J. 8.833
One possible correct answer is: 8.8333333333333
Find the critical path value for the total project duration? 55.9
One possible correct answer is: 37
Standard deviation 6.34
One possible correct answer is: 3.4520525295347
Your answer is partially correct.
You have correctly answered 9 part(s) of this question.
Response history
Step Time Action State Marks
1 8/12/24, 22:04:19 Started Not yet answered
2 9/12/24, 02:51:15 Saved: 10.33, 1, 15.33, 18, 24.66, 17.833, 5.5, 9.666, 12.5, 8.833, 55.9, 6.34 Answer saved
3 9/12/24, 02:52:03 Attempt finished Partially correct 0.60
Question 2
Partially correct
Mark 0.50 out of 2.00
v1 (latest)
The following data relate to advertisement expenditure and their corresponding sales, create a scatter plot and find a regression equation
between advertisement expenditure and their corresponding sales (1 Mark). Then use the regression equation to find sales the advertisement
expenditure for 35 (1 Mark) and 100 (1 Mark).
Note: Use upto 3 decimal in your answer and enter your answer in the box, also kindly upload your worked out sheet answer in link
provided below.
Advertisement Sales
expenditure
52 100
65 70
38 57
60 55.5
65 63
50 87.5
75 79
75 60
64 58
Enter the average advertisement expenditure : 60.44
One possible correct answer is: 60.444444444444
Enter the average corresponding sales : 70
One possible correct answer is: 70
Enter the equation constant b value: 0.194
One possible correct answer is: -0.1953154875717
Enter the equation constant a value: 81.72
One possible correct answer is: 81.805736137667
Enter the sales for 35 advertisements : 88.5
One possible correct answer is: 74.969694072658
Enter the sales for 100 advertisements : 70.00
One possible correct answer is: 62.274187380497
Your answer is partially correct.
You have correctly answered 2 part(s) of this question.
Response history
Step Time Action State Marks
1 8/12/24, 22:04:19 Started Not yet answered
2 9/12/24, 02:51:15 Saved: 60.444, 70, 0.194, 81.72, 88.5, 70.002 Answer saved
3 9/12/24, 02:52:03 Attempt finished Partially correct 0.50
Question 3
Partially correct
Mark 0.67 out of 1.00
v1 (latest)
The firm manufactures photocopying machines and the production plant requires 4483 rollers every year. The supplier claims OMR 33.6 for
ordering each time and each roller cost OMR 19.4. The inventory carrying cost is estimated to be 40.5 % of purchase cost. Calculate:
Note: use upto 3 decimal in your answer and also kindly upload your worked out sheet answer in link provided below.
A) Inventory carrying cost. 7.857
One possible correct answer is: 7.857
B) Economic Ordering Quantity. 195.8
One possible correct answer is: 195.81259791274
C) Optimum order interval in days. 15.94
One possible correct answer is: 15.942805763585
D) Average inventory at any time. 769.2
One possible correct answer is: 97.90629895637
E) storage cost at any time. 2895
One possible correct answer is: 769.2497909002
F) Minimum total inventory cost per year. 1538
One possible correct answer is: 1538.4995818004
Your answer is partially correct.
You have correctly answered 4 part(s) of this question.
Response history
Step Time Action State Marks
1 8/12/24, 22:04:19 Started Not yet answered
2 9/12/24, 02:51:15 Saved: 7.857, 195.812, 15.942, 769.24, 2895.14, 1538.499 Answer saved
3 9/12/24, 02:52:03 Attempt finished Partially correct 0.67
Question 4
Complete
Not graded
v1 (latest)
upload all your worksheets
assign .pdf
Response history
Step Time Action State Marks
1 8/12/24, 22:04:19 Started Not yet answered
2 9/12/24, 02:51:15 Saved: Attachments: assign .pdf (6.6 MB) Incomplete answer
3 9/12/24, 02:52:03 Attempt finished Complete
