II Semester M.Sc. Degree Examination, July/August 2013 (2011-12 & Onwards) (NS) (Semester Scheme) Home Science – Food and Nutrition HSFN-204 : STATISTICS Time : 3 Hours
Max. Marks : 80
Instruction : All Sections are compulsory. SECTION – A Answer any five questions.
(5×3=15)
1. What is classification of data ? Mention its types. 2. Write the utility of Ogives. 3. What are parametric and non-parametric tests ? 4. Write the limitations of statistics. 5. Calculate co-efficient of standard deviation with σ = 37.15 and X = 582.5. 6. What is correlation ? Mention its types. 7. The number of children in 25 families are given below. Prepare a frequency distribution table. 1
2
4
3
4
2
5
3
2
2
4
1
3
5
1
3
5
1
3
3
1
3
1
1
2
SECTION – B Answer any seven questions.
(7×5=35)
8. Discuss the formation of continuous frequency distribution. 9. Calculate the standard deviation and its co-efficient of variation of the heights (cms) of 10 adolescent boys are given below. Heights (cms) X
160 160 161 162 163 163 163 164 164 170 P.T.O.
PG – 558
*PG558*
-2-
10. Write the merits and limitations of Mode. 11. Distinguish between correlation and regression studies. 12. Write the general rules of constructing diagrams. 13. The ranks of 15 students in two subjects Nutrition and Dietetics are as follows. Subjects
Ranks
Nutrition
10
7
2
6
4
8
3
1
Dietetics
1
2
3
4
5
6
7
8
11 15 9
9
5
14 12 13
10 11 12 13 14 15
Use Spearman’s formula to find the rank correlation co-efficient. 14. Write a note on Histogram and Ogives. 15. A survey among women was conducted to study the family life. The observation are as follows. Family Life
Total
Happy
Not Happy
Educated
70
30
100
Not Educated
60
40
100
130
70
200
Total
[X2 Table value : 3.84] Test whether there is any association between family life and education. 16. Write a note on analysis of variance. SECTION – C Answer any two questions. 17. Discuss : a) Coding of data b) Editing c) Data Interpretation.
(2×15=30)
*PG558*
-3-
18. a) Write a note on Mean and Median. b) Calculate Mean and Median for the following data. X
F
0 − 10
4
10 − 20
12
20 − 30
24
30 − 40
36
40 − 50
20
50 − 60
16
60 − 70
8
70 − 80
5
19. Mention the methods of studying variation and discuss any four.
What are parametric and non-parametric tests ? 4. ... A survey among women was conducted to study the family life. The observation. are as follows. Family Life.
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A degree of starch retrogradation is observed to increase along with an increasing ...... Gums and Stabilizers for the Food Industry, Ch. 7 (eds. G.O. Phillips, D.J. ...
