Business statistics and research methods questions with answers
88 multiple-choice questions. Open any question for its answer and explanation.
- If the two regression coefficients are 0.8 and 0.2, then the value of coefficient of correlation is
- Which one of the following objectives is not the objective of secondary data collection?
- Cricketer 'A' scores on an average 40 runs with a standard deviation of 5. Scores of players 'B' and 'C', on an average, are 75 and 90 with standard deviations 10 and 18 respectively. Arrange the players in the descending order of consistency.
- Aset of data can be distinguished from other set of data by means of
- In the frequency curve of symmetric distribution, if a perpendicular is drawn from the vertex to the base line, which is divided into two parts if the area on the right side is greater than the area on the left side, then which of the following has the highest value?
- Mean $$ \pm\, 3\sigma $$ covers-
- The Fisher index number is
- Which one of the following statements is false?
- Select the methods of finding out correlation from the following. 1. Karl Pearson's Method 2. Spearman's Rank Method 3. Yule's Method 4. Coefficient of Contingency 5. Concurrent Deviation Method Select the correct answer:
- A distribution, where the value of arithmetic mean is maximum as compared to median and mode, is
- If A and B are dependent events, then
- Which of the following is the non-random method of selecting sampling from a population?
- The Time Reversibility Test satisfies, if
- Which of the following is not a restricted random sampling technique?
- If the dispersion is small, the standard deviation is:
- The process of thoroughly checking the collected data to ensure optimal quality level is referred to as
- Sample design involves which of the following? 1. Sampling unit 2. Size of samples 3. Type of universe 4. Source list 5. Sampling procedure
- The value we would predict for the dependent variable when the independent variables are all equal to zero is called:
- If bxy = 0.25 and byx = 0.64 correlation coefficient is
- Assertion (A): A reasonably large sized sample drawn randomly from a given population contains almost all the characteristics of the population. Reason (R): As per the sampling theory, the assertion is based only on the 'law of inertia of large numbers'.
- Which one of the following is not a measure of dispersion?
- Assertion (A): When there is an evidence of a linear relationship between two variables, it may not always mean an independent-dependent relationship between the two variables. Reason (R): The casual relationship between the two variables may not imply a reasonable theoretical relationship between the two.
- If there are 8 possible classes under consideration for a goodness of fit, the number of degrees of freedom will be
- If the correlation coefficientis a positive value, then the slope of the regression line:
- In an exclusive class