A ABDULLAH TAYSIR ABDULLAH AL-HINAAI

Status Finished
Started Sunday, 8 December 2024, 6:20 PM
Completed Monday, 9 December 2024, 9:05 AM
Duration 14 hours 45 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 Mark) and construct the
network diagram (1 Mark) to find the critical path of the activity (1 Mark) also indicate the project duration (1 Mark) with the standard
deviation (1 Mark).

Activity Predecessors the expected Optimistic Most likely Pessimistic

time
time time time

(to) (tm) (tp)

A -- 12 18 20

B -- 1 1 1

C A 6 9 30

D B 6 24 6

E A 28 22 32

F C,G 3 14 4

G D 6 6 3

H B 7 6 19

I E,F 7 15 8

J G,H 7 8 22

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. 17.33

One possible correct answer is: 17.333333333333

Enter the expected activity time for B. 1

One possible correct answer is: 1

Enter the expected activity time for C. 12

One possible correct answer is: 12

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. 10.5


 One possible correct answer is: 10.5

Enter the expected activity time for G. 5.5

One possible correct answer is: 5.5

Enter the expected activity time for G. 8.33

One possible correct answer is: 8.3333333333333

Enter the expected activity time for G. 12.5

One possible correct answer is: 12.5

Enter the expected activity time for G. 10.16

One possible correct answer is: 10.166666666667

Find the critical path value for the total project duration? 62.5

One possible correct answer is: 47.5

Standard deviation 11

One possible correct answer is: 5.1908038341325

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, 18:20:00 Started Not yet answered

2 9/12/24, 09:04:49 Saved: 17.33, 1, 12, 18, 24.667, 10.5, 5.5, 8.33, 12.5, 10.167, 62.5, 11 Answer saved

3 9/12/24, 09:05:36 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

40 86
65 82.5
56 34.5

68 50.5
65 70.5

68 92.5
49 91

75 72.5
64 45.5

Enter the average advertisement expenditure : 61.11

One possible correct answer is: 61.111111111111

Enter the average corresponding sales : 69.44

One possible correct answer is: 69.5

Enter the equation constant b value: 0.833

One possible correct answer is: -0.3974012229539

Enter the equation constant a value: 18.53

One possible correct answer is: 93.785630291627

Enter the sales for 35 advertisements : 47.68

One possible correct answer is: 79.876587488241

Enter the sales for 100 advertisements : 101.8

One possible correct answer is: 54.045507996237

 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, 18:20:00 Started Not yet answered

2 9/12/24, 09:04:49 Saved: 61.11, 69.44, 0.833, 18.53, 47.68, 101.83 Answer saved

3 9/12/24, 09:05:36 Attempt finished Partially correct 0.50

Question 3

Partially correct

Mark 0.67 out of 1.00

v1 (latest)

Raymond Bro. has been buying a given item in lots of 6783 units. The cost per unit is 48 and the order cost is 70 per order and the carrying
cost is 41.5 %.

Calculate:

Note: use up to 3 decimal in your answer and also kindly upload your worked out sheet answer in link provided below.

A) Inventory carrying cost. 19.92

One possible correct answer is: 19.92

B) Economic Ordering Quantity. 218.3

One possible correct answer is: 218.33846831694

C) Optimum order interval in days. 11.75

One possible correct answer is: 11.749010900145

D) Average inventory at any time. 282.6

One possible correct answer is: 109.16923415847

E) storage cost at any time. 5629

One possible correct answer is: 2174.6511444367

F) Minimum total inventory cost per year. 4349

One possible correct answer is: 4349.3022888735

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, 18:20:00 Started Not yet answered

2 9/12/24, 09:04:49 Saved: 19.92, 218.33, 11.75, 282.625, 5629.89, 4349.30 Answer saved

3 9/12/24, 09:05:36 Attempt finished Partially correct 0.67

Question 4
Complete

Not graded
v1 (latest)

upload all your worksheets

12S2022 Opration AS1.pdf

Response history

Step Time Action State Marks

1 8/12/24, 18:20:00 Started Not yet answered

2 9/12/24, 09:04:49 Saved: Attachments: 12S2022 Opration AS1.pdf (922.2 KB) Incomplete answer

3 9/12/24, 09:05:36 Attempt finished Complete