Business Statistics and Research Methods MCQs

Question 1

Which one of the following statistical approach must be adopted to deal with the issues of making estimates, predictions and decisions?

Accepted Answer

Inferential statistics

Answer

Descriptive statistics

Answer

Probability theory

Answer

None of the above

Question 2

In table, the wordings of stubs and captions should be . . . . . . . .

Accepted Answer

as brief as possible

Answer

as detailed as possible

Answer

to the point

Answer

Both B and C

Question 3

The critical region of a test of hypothesis is equal to the

Accepted Answer

probability of committing type I error

Answer

probability of a correct decision

Answer

probability of not making a correct decision

Answer

probability of committing type II error

Question 4

The data are presented in time series:

Accepted Answer

On the basis of Both A and B

Answer

On the basis of value

Answer

On the basis of time

Answer

None of the above

Question 5

The measures used to calculate the variation present among the observations relative to their average is called:

Accepted Answer

Relative measures of dispersion

Answer

Coefficient of kurtosis

Answer

Absolute measures of dispersion

Answer

Quartile deviation

Question 6

In sampling research, a study can be made to arrive at a concrete conclusion

Accepted Answer

Representative units of the population

Answer

Only a very small numbers of units out of over all pollution

Answer

All units of the whole population

Answer

None of the above

Question 7

"Internal validity" refers to:

Accepted Answer

whether or not there is really a causal relationship between two variables

Answer

whether or not the findings are relevant to the researcher's everyday lives

Answer

the extent to which the researcher believes that this was a worthwhile project

Answer

how accurately the measurements represent underlying concepts

Question 8

In trees standard error of estimation 'n' stands for

Accepted Answer

$$n = Z_{1 - \frac{\alpha }{2}}^2.{\sigma ^2}{m^2}$$

Answer

$$n = {Z_{1 - \frac{\alpha }{2}}}.\frac{{{m^2}}}{{{\sigma ^2}}}$$

Answer

$$n = Z_{1 - \frac{\alpha }{2}}^2.\frac{\sigma }{m}$$

Answer

Both A and C

Question 9

Which of the following is the non-random method of selecting samples from a given population?

Accepted Answer

Quota Sampling

Answer

Stratified Sampling

Answer

Systematic Sampling

Answer

Multi-stage Sampling