Business Statistics and Research Methods MCQs

Question 1

Assertion (A) Range is not useful to manager for comparison, if the observations are in different units. Reason (R) For the purpose of comparison a relative measure of range is required which is called coefficient of range.

Accepted Answer

Both (A) and (R) are true

Answer

(A) is true, but (R) is false

Answer

(A) is false, but (R) is true

Answer

Both (A) and (R) are false

Question 2

Which of the following statements are true for a standard normal curve? 1. Standard normal curve is symmetrical. 2. Standard normal curve is non-symmetrical.

Accepted Answer

Only 1

Answer

Only 2

Answer

Both 1 and 2

Answer

None of the above

Question 3

Which of the following test are used for dealing with the problem of small samples?

Accepted Answer

Both A and B

Answer

T-test

Answer

Z-test

Answer

Neither A nor B

Question 4

Whenever the data is related to speed distance and time, their best average will be

Accepted Answer

Harmonic mean

Answer

Median

Answer

Mode

Answer

Geometric mean

Question 5

X measures Wages in Rupees

Accepted Answer

Unit of its average is Rs. but variance does not have any unit

Answer

Unit of its average is Rs. and unit of variance is Rs.

Answer

Unit of its average is Rs. and unit of variance is Rs. Square

Answer

Unit of its average is Rs. but unit of variance is square not of Rs.

Question 6

Which of the following relation is correct?

Accepted Answer

$$G.M. = \sqrt {\overline X .H.M.} $$

Answer

$$\overline X = \sqrt {G.M. 	imes H.M.} $$

Answer

$$G.M. = \frac{{\overline X + H.M.}}{2}$$

Answer

$$H.M. = \sqrt {\overline X .G.M.} $$

Question 7

The probable error of the coefficient of correlation (r) is calculated by which one of the following formulae?

Accepted Answer

$$0.6745\frac{{1 - {r^2}}}{{\sqrt n }}$$

Answer

$$0.6745\sqrt {\frac{{1 - {r^2}}}{n}} $$

Answer

$$0.6745\frac{{1 + {r^2}}}{{\sqrt n }}$$

Answer

$$0.6745\frac{{1 + {r^2}}}{n}$$

Question 8

"Controlled Group" is a term used in:

Accepted Answer

Experimental research

Answer

Survey research

Answer

Historical research

Answer

Descriptive research

Question 9

Which of the following variables cannot be expressed in quantitative terms?

Accepted Answer

Numerical Aptitude

Answer

Socio-economic Status

Answer

Marital Status

Answer

Professional Attitude