Business Statistics and Research Methods MCQs

Question 1

. . . . . . . . data is original in character and is generated by surveys conducted by individuals or research institutions.

Accepted Answer

Tabulated

Answer

Primary

Answer

Secondary

Answer

None of these

Question 2

By which one of the following formula is the standard deviation (s) of natural numbers found in sequence?

Accepted Answer

$$\sigma = \sqrt {\left( {\frac{1}{{12}}} \right)\left( {{N^2} - 1} \right)} $$

Answer

$$\sigma = \sqrt {\frac{{{N^2} - 1}}{8}} $$

Answer

$$\sigma = \sqrt {{N^2} - \frac{1}{{12}}} $$

Answer

$$\sigma = \sqrt {\frac{{{N^2}}}{{12}} - 1} $$

Question 3

A measure of central tendency means

Accepted Answer

All of the above

Answer

an average of a distribution

Answer

a single figure which can be regarded as a representative of the whole distribution

Answer

representative of a set of data

Question 4

Which of the following are the methods of forming the class interval?

Accepted Answer

Both A and B

Answer

Exclusive method

Answer

Inclusive method

Answer

Neither A nor B

Question 5

Read the following statement and indicate the correct options from the alternative given below. Statement I When the null hypothesisis true but as per the hypothesis-testing, it is rejected, it is known as beta type error in hypothesis testing. Statement II Chi-square test is exclusively a non-parametric test.

Accepted Answer

Both the statements are false

Answer

Both the statements are true

Answer

Statement I is true, while Statement II is false

Answer

Statement I is false, while Statement II is true

Question 6

High degree of correlation is assumed, when

Accepted Answer

r = 0.9

Answer

r = 0.52

Answer

r = 0.45

Answer

r = 0.65

Question 7

Which of the following measures are unit free? 1. Correlation coefficient 2. Covariance 3. Coefficient of variation 4. Index numbers Select the correct answer using the options given below

Accepted Answer

1, 3 and 4

Answer

1, 2 and 3

Answer

Both 1 and 4

Answer

None of the above

Question 8

The sampling distribution of the mean is a distribution of:

Accepted Answer

sample statistics

Answer

inferential statistics

Answer

population values

Answer

population parameters

Question 9

Proportion of changes in y due to changes in x is denoted by the following measure.

Accepted Answer

Coefficient of determination

Answer

Standard error of estimate

Answer

Coefficient of correlation

Answer

Probable error