Business Statistics and Research Methods MCQ Questions and Solutions with Explanations | Commerce

A. negative

B. positive

C. zero

D. None of them

A. a-1, b-2, c-3

B. a-2, b-3, c-1

C. a-3, b-1, c-2

D. a-2, b-1, c-3

E. a-1, b-3, c-2

A. Descriptive statistics

B. Inferential statistics

C. Probability theory

D. None of the above

A. as detailed as possible

B. as brief as possible

C. to the point

D. Both B and C

A. probability of a correct decision

B. probability of not making a correct decision

C. probability of committing type I error

D. probability of committing type II error

A. On the basis of value

B. On the basis of time

C. On the basis of Both A and B

D. None of the above

A. Coefficient of kurtosis

B. Absolute measures of dispersion

C. Quartile deviation

D. Relative measures of dispersion

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

B. All units of the whole population

C. Representative units of the population

D. None of the above

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

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

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

D. how accurately the measurements represent underlying concepts

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

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

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

D. Both A and C