Business Statistics and Research Methods MCQs

Question 1

If the coefficient of determination is 0.81, the correlation coefficient:

Accepted Answer

could be either +0.9 or -0.9

Answer

0.6561

Answer

must be positive

Answer

must be negative

Question 2

Non-parametric test is valid when sample size is:

Accepted Answer

Small

Answer

Large

Answer

Large and small

Answer

None of these

Question 3

Find out the value of the median from the following frequency Size of Items 8 10 12 14 16 18 20 Frequency 3 7 12 28 10 9 6

Accepted Answer

14

Answer

12

Answer

16

Answer

18

Question 4

Variance of binomial distribution is equal to

Accepted Answer

n.p.q

Answer

n.p

Answer

p.q

Answer

None of these

Question 5

Which of the following distribution tends to standard normal distribution as the degree of freedom increases?

Accepted Answer

T-statistics

Answer

Binomial distribution

Answer

Poisson distribution

Answer

Normal distribution

Question 6

A measure of central tendency is:

Accepted Answer

Mode

Answer

Measurement of dispersion

Answer

Skewness

Answer

Mean deviation

Question 7

Which of the following is not a method of collecting primary data?

Accepted Answer

National publications

Answer

Direct interview

Answer

Indirect interview

Answer

Questionnaire method

Question 8

Which of the following sampling methods is a probability sample?

Accepted Answer

Simple random sample

Answer

Judgment sample

Answer

Quota sample

Answer

Chunk sample

Question 9

Consider the following tests. 1. Z-test 2. T-test 3. F-test 4. Chi-square test The concept of degree of freedom is associated with

Accepted Answer

2, 3 and 4

Answer

Both 1 and 2

Answer

Both 2 and 3

Answer

Both 3 and 4