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Wednesday, 4 November 2020

NMIMS Assignments December 2020: Contact us for solutions at assignmentssolution@gmail.com

 

NMIMS Global Access
School for Continuing Education (NGA-SCE)
Course: Business Statistics
Internal Assignment Applicable for December 2020 Examination
Assignment Marks: 30

Data Set: Sample of 7 different species of fish has been taken and their weight in grams,
lengths (vertical, diagonal, cross given as length 1, length 2 and length 3 respectively),
height and width in cm is given below:

 

Q-1:

Species

Weight

Length1

Length2

Length3

Height

Width

Bream

725

31.8

35

40.9

16.36

6.0532

Bream

720

32

35

40.6

16.3618

6.09

Bream

714

32.7

36

41.5

16.517

5.8515

Bream

850

32.8

36

41.6

16.8896

6.1984

Bream

1000

33.5

37

42.6

18.957

6.603

Bream

920

35

38.5

44.1

18.0369

6.3063

Bream

955

35

38.5

44

18.084

6.292

Bream

925

36.2

39.5

45.3

18.7542

6.7497

Bream

975

37.4

41

45.9

18.6354

6.7473

Bream

950

38

41

46.5

17.6235

6.3705

Roach

0

19

20.5

22.8

6.4752

3.3516

Roach

110

19.1

20.8

23.1

6.1677

3.3957

Roach

120

19.4

21

23.7

6.1146

3.2943

Roach

150

20.4

22

24.7

5.8045

3.7544

Roach

145

20.5

22

24.3

6.6339

3.5478

Roach

160

20.5

22.5

25.3

7.0334

3.8203

Roach

140

21

22.5

25

6.55

3.325

Roach

160

21.1

22.5

25

6.4

3.8

Roach

169

22

24

27.2

7.5344

3.8352

Roach

161

22

23.4

26.7

6.9153

3.6312

Roach

200

22.1

23.5

26.8

7.3968

4.1272

Roach

180

23.6

25.2

27.9

7.0866

3.906

Roach

290

24

26

29.2

8.8768

4.4968

Roach

272

25

27

30.6

8.568

4.7736

Roach

390

29.5

31.7

35

9.485

5.355

Whitefish

270

23.6

26

28.7

8.3804

4.2476

Whitefish

270

24.1

26.5

29.3

8.1454

4.2485

Whitefish

306

25.6

28

30.8

8.778

4.6816

Whitefish

540

28.5

31

34

10.744

6.562

Whitefish

800

33.7

36.4

39.6

11.7612

6.5736

Whitefish

1000

37.3

40

43.5

12.354

6.525

Parkki

55

13.5

14.7

16.5

6.8475

2.3265

Parkki

60

14.3

15.5

17.4

6.5772

2.3142

Parkki

90

16.3

17.7

19.8

7.4052

2.673

Parkki

120

17.5

19

21.3

8.3922

2.9181

Parkki

150

18.4

20

22.4

8.8928

3.2928

Parkki

140

19

20.7

23.2

8.5376

3.2944

Parkki

170

19

20.7

23.2

9.396

3.4104

Parkki

145

19.8

21.5

24.1

9.7364

3.1571

Parkki

200

21.2

23

25.8

10.3458

3.6636

Parkki

273

23

25

28

11.088

4.144

Parkki

300

24

26

29

11.368

4.234

Perch

5.9

7.5

8.4

8.8

2.112

1.408

 

Perch

32

12.5

13.7

14.7

3.528

1.9992

 

Perch

40

13.8

15

16

3.824

2.432

 

Perch

51.5

15

16.2

17.2

4.5924

2.6316

 

Perch

70

15.7

17.4

18.5

4.588

2.9415

 

Perch

100

16.2

18

19.2

5.2224

3.3216

 

Perch

78

16.8

18.7

19.4

5.1992

3.1234

 

Perch

80

17.2

19

20.2

5.6358

3.0502

 

Perch

85

17.8

19.6

20.8

5.1376

3.0368

 

Perch

85

18.2

20

21

5.082

2.772

 

Perch

110

19

21

22.5

5.6925

3.555

 

Pike

430

35.5

38

40.5

7.29

4.5765

 

Pike

345

36

38.5

41

6.396

3.977

 

Pike

456

40

42.5

45.5

7.28

4.3225

 

Pike

510

40

42.5

45.5

6.825

4.459

 

Pike

540

40.1

43

45.8

7.786

5.1296

 

Pike

500

42

45

48

6.96

4.896

 

Pike

567

43.2

46

48.7

7.792

4.87

 

Pike

770

44.8

48

51.2

7.68

5.376

 

Pike

950

48.3

51.7

55.1

8.9262

6.1712

 

Pike

1250

52

56

59.7

10.6863

6.9849

 

Smelt

6.7

9.3

9.8

10.8

1.7388

1.0476

 

Smelt

7.5

10

10.5

11.6

1.972

1.16

 

Smelt

7

10.1

10.6

11.6

1.7284

1.1484

 

Smelt

9.7

10.4

11

12

2.196

1.38

 

Smelt

9.8

10.7

11.2

12.4

2.0832

1.2772

 

Smelt

8.7

10.8

11.3

12.6

1.9782

1.2852

 

Smelt

10

11.3

11.8

13.1

2.2139

1.2838

 

Smelt

9.9

11.3

11.8

13.1

2.2139

1.1659

 

Smelt

9.8

11.4

12

13.2

2.2044

1.1484

 

Smelt

12.2

11.5

12.2

13.4

2.0904

1.3936

 

 

a. Find the mean and standard deviation for each type of fish for every variable.
b. If you need to choose a fish on the basis of weight, which fish you choose?
c. Find mean, median, quartiles for the entire data set for each variable.
(10 Marks)


Q-2: Regress the following:
a. Taking weight as dependent variable and height as independent variable. Is variable is
found to be significant?
b. Taking weight as dependent variable and width as independent variable. Is variable is
found to be significant?
c. Taking weight as dependent variable and length1, length 2 and length 3 as independent
variable. Are variables is found to be significant? Which variable is not significant?
d. Taking weight as dependent variable and height, width, length 1, length 2 and length 3
as independent variable.
e. On basis of adjusted R square compare the model of part a, b, c and d. which model is
best to predict weight?
(10 Marks)
Q-3 The daily COVID 19 cases (in hundred) for Delhi for past 2 week is summarize in the
following table:

 

Day

1

2

3

4

5

6

7

8

9

10

11

12

13

14

Cases

28

29

33

31

37

34

36

43

41

32

34

37

39

32

 

a. Using exponential smoothing method forecast the cases for 15 days, taking alpha as 0.3
and Initial forecast is the average of all data.
(5 Marks)
b. Using linear trend analysis, find the trend line for number of COVID 19 cases in Delhi
and forecast for next 3 days. Also compute the Mean Square Error.
(5 Marks)
**********

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