Free Printable BASIC CONCEPTS IN STATISTICS

1.

The values of measures of central tendency computed for a distribution following the normal curve are always -------

a)

A. Equal

b)

B. Different

c)

C. Greater than one

d)

D. One

2.

The normal curve is ---------

a)

A. Unimodal

b)

B. Bimodal

c)

C. Multimodal

d)

D. Asymmetric

3.

When one or both variables are measured on an ordinal scale, the appropriate correlation measure is --------

a)

A. Pearson’s r

b)

B. Spearman’s rho

c)

C. Partial correlation

4.

Level of significance is the maximum possibility of making --------

a)

A. A correct decision

b)

C. Type I error

c)

B. wrong decision

d)

D. Type II error

5.

The critical value of Z for a single-tailed test at 0.01 level of significance is -------

‘

a)

A. 1.96

b)

B. 2.576

c)

C. 1.645

d)

D. 2.326

6.

Test of goodness of fit’ is a type of ------- test.

a)

A. Z – test

b)

B. t – test

c)

C. F – test

d)

D. Chi-square test

7.

Which of the following is the non-parametric alternative to the t –test?

a)

A. Repeated ANOVA

b)

B. Mann-Whitney U test

c)

C. Kruskal-Wallis test

d)

D. Rank correlation

8.

In an ANOVA summary table between groups df is given as 5. How many groups are there in the experiment?

a)

A. 3

b)

B. 4

c)

C. 5

d)

D. 6

9.

In the summary of the result of an independent sample t test, the df is given as 30. What is the total sample size of the comparison?

a)

A. 28

b)

B. 30

c)

C. 31

d)

D. 32

10.

We name or label the groups in this scale

a)

A. Nominal

b)

B. Ordinal

c)

C. Interval

d)

D. Ratio

11.

The coefficient of correlation:

a)

A. Has no limits

b)

C. Is always less than one

c)

C. Is always more than one

d)

D. Varies between +1 and -1

12.

Which of the following is appropriate for comparing a population mean with a sample mean, when population standard deviation is unknown?

a)

A. Z – test

b)

B. Simple t-test

c)

C. Independent t –test

d)

D. Post hoc test

13.

When there are more number of cases below the mean than above, distribution is:

a)

A. Positively skewed

b)

B. Negatively skewed

c)

C. Not skewed

d)

D. Leptokurtic

14.

If the coefficient of kurtosis is less than 0.263, the distribution is:

a)

A. Leptokurtic

b)

B. Mesokurtic

c)

C. Platykurtic

d)

D. Macrokurtic

15.

. The coefficient of skewness of a normal distribution is A and the kurtosis is B. A =?, B = ?

a)

A. 0, 0.263

b)

B. 0.263, 0

c)

C. 0.263, 0.263

d)

D. 0, 0.262

16.

Average affected by extreme observations:

a)

A. Mode

b)

B. Median

c)

C. Arithmetic mean

d)

D. Geometric mean

17.

Degree of relationship is expressed as

a)

A. Normal distribution

b)

B. Measures of variability

c)

C. Measures of central tendency

d)

D. Correlation coefficient

18.

Which of the following indicates a statistical association in which higher scores on one variable are associated with higher scores on the other variable?

a)

A. Negative correlation

b)

B. Positive correlation

c)

C. No correlation

d)

D. Correlation coefficient

19.

------ is a relationship between two variables in which the relationship is best described by a straight line.

a)

A. Positive relationship

b)

B. Coefficient of correlation

c)

C. Negative relationship

d)

D. Linear relationship

20.

If the two variables are not related, a coefficient near ------ will be obtained.

a)

A. 0.00

b)

B. 0.05

c)

C. 0.01

d)

D. 1.00

BASIC CONCEPTS IN STATISTICS

Total questions: 20

Worksheet time: 10mins

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