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

A. $$\sqrt {\frac{{{\text{pq}}}}{{\text{n}}}} $$

B. $$\sqrt {{\text{npq}}} $$

C. npq

D. n² p²

A. 60

B. 50

C. 45

D. 70

A. Relieson four values, and therefore, does not provide a measure of dispersion

B. Can be calculated by subtracting the median from the fourth quartile

C. Is normally used when the measure of central tendency is the mode

D. Is representative of the middle 50% of values in the data set

A. For every Rs. 1 spent on advertising, sales increase by Rs. 7 on average

B. For every Rs. 1 increase in sales, Rs. 7 must on average be spent on advertising

C. For every Rs. 1 spent on advertising, sales increase by Rs. 8

D. When advertising is zero, sales are Rs. 50/7

A. Descriptive statistics summarize the characteristics of a data set

B. Inferential statistics allow you to test a hypothesis or assess whether your data is generalizable to the broader population

C. Correlational statistics provide a description of the sample or population for their further analyses to explore the significance of their differences

D. All of the above

A. 2

B. mean itself

C. 5

D. None of these

A. n

B. $$\frac{1}{n}$$

C. $$\frac{1}{{{n^2}}}$$

D. None of these

A. Yule and Kendall

B. A. L. Bowley

C. Boddington

D. Croxton and Cowden

E. Horace Secrist

A. Test of independence of attributes

B. Test of goodness of fit of a specific type of distribution

C. Test for population variance on the basis of small sized sample variance

D. Test of homogeneity of several populations with respect to some characteristic of interest

A. Who do you need to study in order to investigate your research questions?

B. How easily can you gain access to a sampling frame?

C. What kind of sampling strategy will you employ?

D. All of the above