1. Discuss the concept of Normal Curve. Describe properties of Normal Probability Curve.

2. Define Non-parametric Statistics. Describe the assumptions and use of non-parametric tests.

3. A research was carried out to find if significant difference exists in the self concept of early, middle and late adolescents. The scores obtained on self concept are given below. Using ANOVA indicate if the groups differ on self concept significantly.

<img src='./qimages/9968-3.jpg'>

Critical value: 5.49 at 0.01 level of significance.
3.35 at 0.05 level of significance.

4. Compute regression equation for X and Y based on the data given below

<img src='./qimages/9968-4.jpg'>

5. Define hypothesis testing. Discuss general procedure for testing a hypothesis with the help of suitable example.

6. Calculate Mann-Whitney V-test with the help of the following data

Group 40, 17, 46, 51, 45
Group 12, 18, 20, 15, 17

7. Compute Chi-square for the following data:

<img src='./qimages/9968-7.jpg'>

8. Compute Spearman's Rank Correlation for the following data

Data 1 44, 45, 45, 34, 43, 23, 54, 34, 67, 45

Data 2 12, 21, 32, 12, 12, 15, 26, 12, 16, 12

9. Describe point biserial correlation and tetrachoric correlation.

Write short notes on any two of the following in about 100 words each:

10. Kruskal-Walli's ANOVA Test

11. Levels of measurement

12. Wilcoxon Matched Pair Signed Ranks Test