MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
This section includes 657 Mcqs, each offering curated multiple-choice questions to sharpen your Testing Subject knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Degrees of freedom for Chi-squre test in case of contingency table of order (5x5) is: |
| A. | 25 |
| B. | 16 |
| C. | 10 |
| D. | Infinity |
| Answer» C. 10 | |
| 2. |
Regression coefficient is independent of........................... |
| A. | Origin |
| B. | Scale |
| C. | Both a and b |
| D. | Neither origin nor scale |
| Answer» B. Scale | |
| 3. |
The probability of rejecting a true null hypothesis is called....................... |
| A. | Degree of freedom |
| B. | Level of significance |
| C. | Level of confidence |
| D. | None of these |
| Answer» C. Level of confidence | |
| 4. |
Numerical measure of correlation is called ..................... |
| A. | Coefficient of correlation |
| B. | Coefficient of determination |
| C. | Coefficient of non-determination |
| D. | Coefficient of regression |
| Answer» B. Coefficient of determination | |
| 5. |
If the ratio of change in one variable is equal to the ratio of change in the other variable,then the correlation is said to be ..................... |
| A. | Linear |
| B. | Non-linear |
| C. | Curvilinear |
| D. | None of these |
| Answer» B. Non-linear | |
| 6. |
Z test was designed by ........................................ |
| A. | R A Fisher |
| B. | Wilcoxon |
| C. | Wald wolfowitz |
| D. | W S Gosset |
| Answer» B. Wilcoxon | |
| 7. |
If the regression line is X on Y, then the variable X is known as.......................... |
| A. | Dependent variable |
| B. | Independent variable |
| C. | Bothe a and b |
| D. | None of the above |
| Answer» B. Independent variable | |
| 8. |
The –ve sign of correlation coefficient between X and Y indicates............................. |
| A. | X decreasing, Y increasing |
| B. | X increasing, Y decreasing |
| C. | Any of the above |
| D. | There is no change in X and Y |
| Answer» D. There is no change in X and Y | |
| 9. |
Testing of hypotheses Ho : μ = 45 vs. H1 : μ > 45 when the population standard deviationis known, the appropriate test is: |
| A. | t-test |
| B. | Z test |
| C. | Chi-square test |
| D. | F test |
| Answer» C. Chi-square test | |
| 10. |
Testing of hypotheses Ho : μ = 65 vs. H1 : μ ≠ 65, is a ...................test. |
| A. | One sided left tailed test |
| B. | One sided right tailed test |
| C. | Two tailed test |
| D. | None of these |
| Answer» D. None of these | |
| 11. |
While computing F ratio, customarily, the larger variance is taken as ..................... |
| A. | Denominator |
| B. | Numerator |
| C. | Either way |
| D. | None of these |
| Answer» C. Either way | |
| 12. |
1 – Level of confidence =............................. |
| A. | Level of significance |
| B. | Degree of freedom |
| C. | Either a or b |
| D. | None of these |
| Answer» B. Degree of freedom | |
| 13. |
Pearsonian correlation coefficient if denoted by the symbol ............... |
| A. | K |
| B. | r |
| C. | R |
| D. | None of these |
| Answer» D. None of these | |
| 14. |
A wrong decision about null hypothesis leads to: |
| A. | One kind of error |
| B. | Two kinds of errors |
| C. | Three kinds of errors |
| D. | Four kinds of errors |
| Answer» C. Three kinds of errors | |
| 15. |
Regression line is also called................................. |
| A. | Estimating equation |
| B. | Prediction equation |
| C. | Line of average relationship |
| D. | All the above |
| Answer» E. | |
| 16. |
Degrees of freedom for Chi-squre test in case of contingency table of order (4x3) is: |
| A. | 4 |
| B. | 3 |
| C. | 6 |
| D. | 7 |
| Answer» D. 7 | |
| 17. |
The level of probability of accepting a true null hypothesis is called........................ |
| A. | Degree of freedom |
| B. | Level of significance |
| C. | Level of confidence |
| D. | D, |
| Answer» D. D, | |
| 18. |
The Correlation coefficient between two variables is the ........................... of theirregression coefficients. |
| A. | Arithmetic mean |
| B. | Geometric mean |
| C. | Harmonic mean |
| D. | None of these |
| Answer» C. Harmonic mean | |
| 19. |
Spearman’s Rank Correlation Coefficient is usually denoted by.................... |
| A. | K |
| B. | r |
| C. | S |
| D. | R |
| Answer» E. | |
| 20. |
......................... is the original hypothesis |
| A. | Null hypothesis |
| B. | Alternative hypothesis |
| C. | Either a or b |
| D. | None of these |
| Answer» B. Alternative hypothesis | |
| 21. |
Accepting a null hypothesis when it is false is called................................ |
| A. | Type I error |
| B. | Type II error |
| C. | Probable error |
| D. | Standard error |
| Answer» C. Probable error | |
| 22. |
If r is the simple correlation coefficient, the quantity 1 -- r2is known as ................... |
| A. | Coefficient of determination |
| B. | Coefficient of non-determination |
| C. | Coefficient of alienation |
| D. | None of these |
| Answer» C. Coefficient of alienation | |
| 23. |
When the values of two variables move in the opposite directions, correlation is said to be............................ |
| A. | Linear |
| B. | Non-linear |
| C. | Positive |
| D. | Negative |
| Answer» E. | |
| 24. |
If X and Y are independent, the value of byx is equal to ........................ |
| A. | Zero |
| B. | One |
| C. | Infinity |
| D. | Any positive value |
| Answer» B. One | |
| 25. |
If one regression coefficient is negative, the other is ............................... |
| A. | 0 |
| B. | – ve |
| C. | +ve |
| D. | Either a or b |
| Answer» C. +ve | |
| 26. |
While applying chi-square test, the frequency in any cell should not be ...................... |
| A. | More than 5 |
| B. | Less than 5 |
| C. | More than 10 |
| D. | Less than 10 |
| Answer» C. More than 10 | |
| 27. |
Correlation analysis between two sets of data only is called.................... |
| A. | Partial correlation |
| B. | Multiple correlation |
| C. | Nonsense correlation |
| D. | Simple correlation |
| Answer» E. | |
| 28. |
Chi-square test was first used by ............................... |
| A. | R A Fisher |
| B. | William Gosset |
| C. | James Bernoulli |
| D. | Karl Pearson |
| Answer» E. | |
| 29. |
If coefficient of correlation is more than ................of its P E, correlation is significant. |
| A. | 2 times |
| B. | 5 times |
| C. | 6 times |
| D. | 10 times |
| Answer» D. 10 times | |
| 30. |
Which of the following is a non-parametric test? |
| A. | F-test |
| B. | Z-test |
| C. | Wilcoxon test |
| D. | All of the above |
| Answer» D. All of the above | |
| 31. |
Runs test was designed by ............................. |
| A. | Kruskal and Wallis |
| B. | Kolmogrov and Smirnov |
| C. | Wald wolfowitz |
| D. | Karl Pearson |
| Answer» D. Karl Pearson | |
| 32. |
The control charts used to monitor variable is........................... |
| A. | Range chart |
| B. | P-chart |
| C. | C-chart |
| D. | All of the above |
| Answer» B. P-chart | |
| 33. |
....................refers to analysis of average relationship between two variables to providemechanism for prediction. |
| A. | Correlation |
| B. | Regression |
| C. | Standard error |
| D. | None of these |
| Answer» C. Standard error | |
| 34. |
To test a hypothesis about proportions of items in a class, the usual test is.............. |
| A. | t-test |
| B. | Z- test |
| C. | F test |
| D. | Sign test |
| Answer» C. F test | |
| 35. |
The property that byx > 1 implies that bxy < 1 is known as ..................... |
| A. | Fundamental property |
| B. | Magnitude property |
| C. | Signature property |
| D. | None of these |
| Answer» C. Signature property | |
| 36. |
Coefficient of correlation explains: |
| A. | Concentration |
| B. | Relation |
| C. | Dispersion |
| D. | Asymmetry |
| Answer» C. Dispersion | |
| 37. |
...........................attempts to determine the degree of relationship between variables. |
| A. | Regression analysis |
| B. | Correlation analysis |
| C. | Inferential analysis |
| D. | None of these |
| Answer» C. Inferential analysis | |
| 38. |
Total number of observations – number of constraints =...................... |
| A. | Level of significance |
| B. | Degree of freedom |
| C. | Level of confidence |
| D. | Sample size |
| Answer» C. Level of confidence | |
| 39. |
Probable error is used to: |
| A. | Test the reliability of correlation coefficient |
| B. | Measure the error in correlation coefficient |
| C. | Both a an b |
| D. | None of these |
| Answer» B. Measure the error in correlation coefficient | |
| 40. |
Calculated value of chi-square is always........................ |
| A. | Positive |
| B. | Negative |
| C. | Zero |
| D. | None of these |
| Answer» B. Negative | |
| 41. |
For perfect correlation, the coefficient of correlation should be .......................... |
| A. | ± 1 |
| B. | + 1 |
| C. | – 1 |
| Answer» B. + 1 | |
| 42. |
bxy is the regression coefficient of the regression equation..................... |
| A. | Y on X |
| B. | X on Y |
| C. | Either a or b |
| D. | None of these |
| Answer» C. Either a or b | |
| 43. |
The geometric mean of the two regression coefficient, bxy and byx is equal to: |
| A. | R |
| B. | r2 |
| C. | 1 |
| D. | None of the above |
| Answer» B. r2 | |
| 44. |
If X and Y are independent, the property byx = bxy = 0 is called ................... |
| A. | Fundamental property |
| B. | Magnitude property |
| C. | Mean property |
| D. | Independence property |
| Answer» E. | |
| 45. |
If the discrepancy between observed and expected frequencies are greater,......................... will be the chi-square value. |
| A. | Greater |
| B. | Smaller |
| C. | Zero |
| D. | None of these |
| Answer» B. Smaller | |
| 46. |
Testing of hypothesis and ......................are the two branches of statistical inference. |
| A. | Statistical analysis |
| B. | Probability |
| C. | Correlation analysis |
| D. | Estimation |
| Answer» E. | |
| 47. |
When sample is small,....................... test is applied. |
| A. | t-test |
| B. | Z test |
| C. | F test |
| D. | None of these |
| Answer» B. Z test | |
| 48. |
When the values of two variables move in the same direction, correlation is said to be............................ |
| A. | Linear |
| B. | Non-linear |
| C. | Positive |
| D. | Negative |
| Answer» D. Negative | |
| 49. |
Type I error is denoted by........................... |
| A. | Alpha |
| B. | Beta |
| C. | Gamma |
| D. | None of these |
| Answer» B. Beta | |
| 50. |
What type of chart will be used to plot the number of defective in the output of anyprocess? |
| A. | x̄ chart |
| B. | R chart |
| C. | C chart |
| D. | P chart |
| Answer» E. | |