MCQOPTIONS
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MCQOPTIONS
This section includes 126 Mcqs, each offering curated multiple-choice questions to sharpen your SRMJEEM knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Coefficient of concurrent deviation depends on ....................... |
| A. | The signs of the deviations |
| B. | The magnitude of the deviations |
| C. | Bothe a and b |
| D. | None of these |
| Answer» B. The magnitude of the deviations | |
| 2. |
Scatter diagram is also called ...................... |
| A. | Dot chart |
| B. | Correlation graph |
| C. | Both a and b |
| D. | None of these |
| Answer» B. Correlation graph | |
| 3. |
The control charts used to monitor attributes is............................ |
| A. | Range chart |
| B. | P-chart |
| C. | C-chart |
| D. | All of the above |
| Answer» C. C-chart | |
| 4. |
When the expected frequencies and observed frequencies completely coincide, the chi- square value will be .............................. |
| A. | + 1 |
| B. | – 1 |
| C. | None of these |
| Answer» D. | |
| 5. |
When the amount of change in one variable leads to a constant ratio of change in theother variable, then correlation is said to be ......................... |
| A. | Linear |
| B. | Non-linear |
| C. | Positive |
| D. | Negative |
| Answer» B. Non-linear | |
| 6. |
The rank correlation coefficient is always............................ |
| A. | + 1 |
| B. | – 1 |
| C. | Between + 1 and – 1 |
| Answer» E. | |
| 7. |
If ‘r’ is the correlation coefficient between two variables, then: |
| A. | 0 < r < 1 |
| B. | – 1 ≤ r ≤ 1 |
| C. | r ≥ 0 |
| D. | r ≤ 0 |
| Answer» C. r ≥ 0 | |
| 8. |
Type II error is denoted by.................................... |
| A. | Alpha |
| B. | Beta |
| C. | Gamma |
| D. | None of these |
| Answer» C. Gamma | |
| 9. |
Correlation analysis between one dependent variable with one independent variable bykeeping the other independent variables as constant is called...................... |
| A. | Partial correlation |
| B. | Multiple correlation |
| C. | Nonsense correlation |
| D. | Simple correlation |
| Answer» B. Multiple correlation | |
| 10. |
The control charts used for the fraction of defective items in a sample is............................ |
| A. | Range chart |
| B. | P-chart |
| C. | C-chart |
| D. | Mean chart |
| Answer» C. C-chart | |
| 11. |
Accepting a null hypothesis when it is true is called................................ |
| A. | Type I error |
| B. | Type II error |
| C. | Probable error |
| D. | No error |
| Answer» E. | |
| 12. |
If the correlation coefficient between two variables, X and Y, is negative, then theregression coefficient of Y on X is............................. |
| A. | Positive |
| B. | Negative |
| C. | Not certain |
| D. | None of these |
| Answer» C. Not certain | |
| 13. |
Which type of error is more severe error: |
| A. | Type I error |
| B. | Type II error |
| C. | Both a and b |
| D. | None of these |
| Answer» C. Both a and b | |
| 14. |
The idea of testing of hypothesis was first set forth by .......................... |
| A. | R A Fisher |
| B. | J Neyman |
| C. | E L Lehman |
| D. | A Wald |
| Answer» C. E L Lehman | |
| 15. |
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» B. One sided right tailed test | |
| 16. |
Control charts are also termed as............................... |
| A. | Shewart charts |
| B. | Process behaviour chart |
| C. | Both a and b |
| D. | None of these |
| Answer» D. None of these | |
| 17. |
Degrees of freedom for Chi-squre test in case of contingency table of order (2x2) is: |
| A. | 4 |
| B. | 3 |
| C. | 2 |
| D. | 1 |
| Answer» E. | |
| 18. |
In a correlation analysis, if r= 0, then we may say that there is .................. betweenvariables. |
| A. | No correlation |
| B. | Linear correlation |
| C. | Perfect correlation |
| D. | none of these |
| Answer» B. Linear correlation | |
| 19. |
If all the points of a dot chart lie on a straight line parallel to the X-axis, it denotes.................................of correlation. |
| A. | High degree |
| B. | Low degree |
| C. | Moderate degree |
| D. | Absence |
| Answer» E. | |
| 20. |
If all the dots of a scatter diagram lie on a straight line falling from left bottom corner tothe right upper corner, the correlation is called.................. |
| A. | Zero correlation |
| B. | High degree of positive correlation |
| C. | Perfect negative correlation |
| D. | Perfect positive correlation |
| Answer» E. | |
| 21. |
Process control is carried out: |
| A. | Before production |
| B. | During production |
| C. | After production |
| D. | All of the above |
| Answer» C. After production | |
| 22. |
........................is user for testing goodness of fit. |
| A. | Wilcoxon test |
| B. | Sign test |
| C. | K-S Test |
| D. | Chi-square test |
| Answer» E. | |
| 23. |
The property that both the regression coefficients and correlation coefficient have samesigns is called................................ |
| A. | Fundamental property |
| B. | Magnitude property |
| C. | Signature property |
| D. | None of these |
| Answer» D. None of these | |
| 24. |
The control charts used for the number of defects per unit is: |
| A. | Range chart |
| B. | P-chart |
| C. | C-chart |
| D. | Mean chart |
| Answer» D. Mean chart | |
| 25. |
If there are two variables, there can be at most ........................ number of regression lines. |
| A. | One |
| B. | Two |
| C. | Three |
| D. | Infinite |
| Answer» C. Three | |
| 26. |
In ..................... regression analysis, only one independent variable is used to explain thedependent variable. |
| A. | Multiple |
| B. | Non-linear |
| C. | Linear |
| D. | None of these |
| Answer» D. None of these | |
| 27. |
........................is the simplest and most widely used non-parametric test |
| A. | Sign test |
| B. | K-S test |
| C. | Chi-square tst |
| D. | Wilcoxon matched paired test |
| Answer» D. Wilcoxon matched paired test | |
| 28. |
The magnitude of the difference between observed frequencies and expected frequenciesis called ....................... |
| A. | F value |
| B. | Z value |
| C. | t value |
| D. | Chi-square value |
| Answer» E. | |
| 29. |
If r = 0.8, coefficient of determination is..................................... |
| A. | 80% |
| B. | 8% |
| C. | 64% |
| D. | 0.8% |
| Answer» D. 0.8% | |
| 30. |
The G M of two regression coefficients byx and bxy is equal to .......................... |
| A. | R |
| B. | r2 |
| C. | 1 – r2 |
| D. | None of these |
| Answer» B. r2 | |
| 31. |
Which one of the following is a non-parametric test? |
| A. | F test |
| B. | Z test |
| C. | t test |
| D. | Wilcoxon test |
| Answer» B. Z test | |
| 32. |
If byx > 1, then bxy is: |
| A. | Greater than one |
| B. | Less than one |
| C. | Equal to one |
| D. | Equal to zero |
| Answer» C. Equal to one | |
| 33. |
If change in one variable results a corresponding change in the other variable, then thevariables are......................... |
| A. | Correlated |
| B. | Not correlated |
| C. | Any of the above |
| D. | None of the above |
| Answer» B. Not correlated | |
| 34. |
Testing of hypotheses Ho : μ = 85 vs. H1 : μ > 85, is a ...................test. |
| A. | One sided left tailed test |
| B. | One sided right tailed test |
| C. | Two tailed test |
| D. | None of these |
| Answer» C. Two tailed test | |
| 35. |
The term regression was first used by.......................... |
| A. | Karl Pearson |
| B. | Spearman |
| C. | R A Fisher |
| D. | Francis Galton |
| Answer» E. | |
| 36. |
By testing of hypothesis, we mean: |
| A. | A significant procedure in Statistics |
| B. | A method of making a significant statement |
| C. | A rule for accepting or rejecting hypothesis |
| D. | A significant estimation of a problem. |
| Answer» D. A significant estimation of a problem. | |
| 37. |
If the dots in a scatter diagram fall on a narrow band, it indicates a ....................... degreeof correlation. |
| A. | Zero |
| B. | High |
| C. | Low |
| D. | None of these |
| Answer» C. Low | |
| 38. |
If all the points of a dot chart lie on a straight line vertical to the X-axis, then coefficientof correlation is ................... |
| A. | 0 |
| B. | +1 |
| C. | –1 |
| D. | None of these |
| Answer» B. +1 | |
| 39. |
If r= +1, the correlation is said to be ................... |
| A. | High degree of +ve correlation |
| B. | High degree of –ve correlation |
| C. | Perfect +ve correlation |
| D. | Perfect –ve correlation |
| Answer» D. Perfect –ve correlation | |
| 40. |
byx 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» B. X on Y | |
| 41. |
Type II error means.............................. |
| A. | Accepting a true hypothesis |
| B. | Rejecting a true hypothesis |
| C. | Accepting a wrong hypothesis |
| D. | Rejecting a wrong hypothesis |
| Answer» D. Rejecting a wrong hypothesis | |
| 42. |
If r is the simple correlation coefficient, the quantity r2is known as ................... |
| A. | Coefficient of determination |
| B. | Coefficient of non-determination |
| C. | Coefficient of alienation |
| D. | None of these |
| Answer» B. Coefficient of non-determination | |
| 43. |
Coefficient of correlation explains .................... of the relationship between two variables. |
| A. | Degree |
| B. | Direction |
| C. | Both of the above |
| D. | None of the above |
| Answer» D. None of the above | |
| 44. |
While testing a hypothesis, if level of significance is not mentioned, we take ...................level of significance. |
| A. | 1% |
| B. | 2% |
| C. | 5% |
| D. | 10% |
| Answer» D. 10% | |
| 45. |
The range of F ratio is ........................................ |
| A. | – 1 to + 1 |
| B. | – ∞ to ∞ |
| C. | 0 to ∞ |
| D. | 0 to 1 |
| Answer» D. 0 to 1 | |
| 46. |
The technique of analysis of variance was developed by ............................. |
| A. | Frank Wilcoxon |
| B. | Karl Pearson |
| C. | R A Fisher |
| D. | Kolmogrov |
| Answer» D. Kolmogrov | |
| 47. |
An alternative hypothesis is denoted by........................... |
| A. | H0 |
| B. | H1 |
| C. | AH |
| D. | None of these |
| Answer» C. AH | |
| 48. |
If all the points of a scatter diagram lie on a straight line falling from left upper corner tothe right bottom corner, the correlation is called................... |
| A. | Zero correlation |
| B. | High degree of positive correlation |
| C. | Perfect negative correlation |
| D. | Perfect positive correlation |
| Answer» D. Perfect positive correlation | |
| 49. |
Analysis of variance utilises.................. |
| A. | F test |
| B. | Chi square test |
| C. | Z test |
| D. | t test |
| Answer» B. Chi square test | |
| 50. |
Student’s t-test is applicable when: |
| A. | The values of the variate are independent |
| B. | The variable is distributed normally |
| C. | The sample is small |
| D. | All the above |
| Answer» E. | |