I ISSAM NABIL MURAD AL BALUCHI

Status Finished
Started Sunday, 8 December 2024, 8:07 PM
Completed Monday, 9 December 2024, 2:47 AM
Duration 6 hours 39 mins
Grade 1.65 out of 5.00 (33%)
Question 1

Partially correct

Mark 0.40 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 -- 8 9 24

B -- 1 1 1

C A 6 5 50

D B 6 24 6

E A 22 22 30

F C,G 3 14 4

G D 6 6 3

H B 13 16 22

I E,F 7 15 8

J G,H 11 16 25

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. 11.33

One possible correct answer is: 11.333333333333

Enter the expected activity time for B. 1

One possible correct answer is: 1

Enter the expected activity time for C. 12.66

One possible correct answer is: 12.666666666667

Enter the expected activity time for D. 15

One possible correct answer is: 18

Enter the expected activity time for E. 23.33

One possible correct answer is: 23.333333333333

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. 16.5

One possible correct answer is: 16.5

Enter the expected activity time for G. 12.33

One possible correct answer is: 12.5

Enter the expected activity time for G. 16.5

One possible correct answer is: 16.666666666667

Find the critical path value for the total project duration? 47

One possible correct answer is: 47.5

Standard deviation 2.5

One possible correct answer is: 7.9686887252546

Your answer is partially correct.

You have correctly answered 6 part(s) of this question.

Response history
Step Time Action State Marks

1 8/12/24, 20:07:34 Started Not yet answered

2 9/12/24, 02:46:58 Saved: 11.333, 1, 12.667, 15, 23.333, 10.5, 5.5, 16.5, 12.333, 16.5, 47, 2.5 Answer saved

3 9/12/24, 02:47:31 Attempt finished Partially correct 0.40

Question 2

Partially correct

Mark 0.25 out of 2.00

v1 (of 2)

The height and weight of football players are in table below, create a scatter plot and find a regression equation between height and weight
of football players (1 Mark). Then use the regression equation to find the weight of a football player that is 165 Cms tall (1 Mark) and for
a football player that is 182 cms tall (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.

Height (cms) Weight (Kgs)

163 96.5

165 70
160 78.5

160 80
176 109.5

166 97.5
160 91

178 75
161 70

Enter the average height : 154.3

One possible correct answer is: 165.44444444444

Enter the average weight : 85.33

One possible correct answer is: 85.333333333333

Enter the equation constant b value: 0.277

One possible correct answer is: 0.56000578369005

Enter the equation constant a value: 42.57

One possible correct answer is: -7.3165124349434

Enter the weight of a football player is 150 Cms tall : 84.12

One possible correct answer is: 76.684355118565

Enter the weight of a football player is 185 Cms tall : 93.82

One possible correct answer is: 96.284557547717

 Your answer is partially correct.

You have correctly answered 1 part(s) of this question.

Response history
Step Time Action State Marks

1 8/12/24, 20:07:34 Started Not yet answered

2 9/12/24, 02:46:58 Saved: 154.333, 85.333, 0.277, 42.579, 84.129, 93.824 Answer saved

3 9/12/24, 02:47:31 Attempt finished Partially correct 0.25

Question 3

Correct

Mark 1.00 out of 1.00

v1 (latest)

The firm manufactures photocopying machines and the production plant requires 3405 rollers every year. The supplier claims OMR 24.4 for
ordering each time and each roller cost OMR 39.2. The inventory carrying cost is estimated to be 35.25 % 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. 13.82

One possible correct answer is: 13.818

B) Economic Ordering Quantity. 109.6

One possible correct answer is: 109.65940243272

C) Optimum order interval in days. 11.75

One possible correct answer is: 11.754972654315

D) Average inventory at any time. 54.82

One possible correct answer is: 54.829701216361

E) storage cost at any time. 757.9

One possible correct answer is: 757.63681140768

F) Minimum total inventory cost per year. 1502

One possible correct answer is: 1515.2736228154

Your answer is correct.

Response history
Step Time Action State Marks

1 8/12/24, 20:07:34 Started Not yet answered

2 9/12/24, 02:46:58 Saved: 13.824, 109.655, 11.752, 54.827, 757.997, 1502.864 Answer saved

3 9/12/24, 02:47:31 Attempt finished Correct 1.00

Question 4

Complete

Not graded
v1 (latest)

upload all your worksheets

IMG_5486.jpeg

Response history

Step Time Action State Marks

1 8/12/24, 20:07:34 Started Not yet answered

2 9/12/24, 02:46:58 Saved: Attachments: IMG_5486.jpeg (1.3 MB) Incomplete answer

3 9/12/24, 02:47:31 Attempt finished Complete