Business statistics and research methods
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Business statistics and research methods questions with answers

88 multiple-choice questions. Open any question for its answer and explanation.

  1. The under root of two . . . . . . . . coefficients gives us the value of correlation coefficients.
  2. Among the following choose the most suitable 'test' that can be applied to examine the influence of one factor on different groups.
  3. Consider the following statement and identify the wrong statements. Statement I: Accepting null hypothesis, when it is false, is called a level of significance. Statement II: $$1 - \alpha $$ is called power of a test. Statement III: Critical value of $$Z$$ - static for two-tailed test at 5% level of significance is 1.96.
  4. In case of conditional probability (A and B) = ?
  5. In a predominantly illiterate area consisting of 10,000 population, data has to be collected from 10% of them. The appropriate technique for data collection would be
  6. Which one of the following formulas is used to calculate the standard error of coefficient of correlation between 25 paired observations of a sample?
  7. Which of the following is not a condition of the binomial distribution?
  8. Which one of the following is a false description?
  9. The Learner Index measures
  10. The second moment about mean is
  11. Karl Pearson's coefficient of correlation between two variables is
  12. When quantitative measures for certain factors cannot be fixed the measure which is generally adopted is known as?
  13. Statement I: If the alternative hypothesis is as $$\mu \ne {\mu _0}$$ ; a researcher requires two-tailed test in hypothesis-testing. Statement II: The mean of the sampling distribution of mean is not equal to the parametric value of mean.
  14. If unexplained variation between variables X and Y is 36%, what is the coefficient of correlation between the variables?
  15. A reasoning where we start with certain particular statements and conclude with a universal statement is called:
  16. Process of arranging data into a new order is called
  17. From the following, identify one situation where 'F' test cannot be used.
  18. The most widely used method of measuring seasonal variations is
  19. Sturge's rule is used to find out directly
  20. Action research that is usually meant for professional people is:
  21. The index number express-
  22. An ogive is:
  23. Which one of these variables is a continuous random variable?
  24. Correlation coefficient
  25. Normally the reports present conclusions are based on: