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1. If r = 0.591 and n =5, then test statistics t is equal to

a. 1.69

b.1. 45

c. 1. 269

d.0.91

2. To analyze data cross-classified in a contingency table, how are the degrees of freedom

found?

a. N–1

b. Rows – Columns

c. (Rows) x (Columns)

d. (Rows – 1) x (Columns – 1) 2 3. The value of McNemar test statistic for the discordant pairs b=10 and c= 15 is

a. 0.46

b. 0.64

c. 0.69

d. 0.76

4- If the line of regression is given by 8X -10Y +66 = 0, then the values of b0 and b1 are

respectively given by

a. 6.6, 0.8

b. 6.6, 0.6

c. 0.6, 6.6

d. 0.8, 6.6

5- The distribution used to find test statistic for ANOVA is …

a. t-distribution.

b. z-distribution.

c. F-distribution.

d. Chi-square distribution.

Section-III Answer the following Essay Type Questions 1- For the following data, calculate linear correlation

regression line:

X: 1

2

3

4

5

Y: 1 1 2 2 r and also obtain the equation of the 4 2. The following figures shows the distribution of digits in number chosen at random from a

mobile directory

Digits: 0

Frequency: 1026 1 2 3 4 5 6 7 8 9 1107 997 966 1075 933 1107 972 964 853 Test whether the digits may be taken to occur equally frequently in the directory at 5% level

of significance 3 3. Set up an analysis of variance table for the following data for three varieties of wheat each

grown on 4 plots and state if the variety differences are significant. Plot of Per acre production data land Variety of Wheat

X1 X2 X3 1 6 5 5 2 7 5 4 3 3 3 3 4 8 7 4