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MCQOPTIONS
This section includes 515 Mcqs, each offering curated multiple-choice questions to sharpen your Unit Processes knowledge and support exam preparation. Choose a topic below to get started.
| 301. |
What is the meaning of the term "heteroscedasticity"? |
| A. | The variance of the errors is not constant |
| B. | The variance of the dependent variable is not constant |
| C. | The errors are not linearly independent of one another |
| D. | The errors have non- zero mean |
| Answer» B. The variance of the dependent variable is not constant | |
| 302. |
BLUE is |
| A. | Best Linear Unbiased Estimator |
| B. | Best Linear Unconditional Estimator |
| C. | Basic Linear UnconditionalEstimator |
| D. | Both b and c |
| Answer» B. Best Linear Unconditional Estimator | |
| 303. |
What will be the properties of the OLS estimator in the presence of multicollinearity? |
| A. | It will be consistent unbiased and efficient |
| B. | It will be consistent and unbiased but notefficient |
| C. | It will be consistent but not unbiased |
| D. | It will not be consistent |
| Answer» B. It will be consistent and unbiased but notefficient | |
| 304. |
Student’s t-distribution curve is symmetrical about mean, it means that |
| A. | Odd Order Moments are Zero |
| B. | Even Order Moments are Zero |
| C. | Both (A) and (B) |
| D. | None of (A) and (B) |
| Answer» B. Even Order Moments are Zero | |
| 305. |
The violation of the assumption of constant variance of the residual is known as |
| A. | Heteroscedasticity |
| B. | Multicollinearity |
| C. | Homoscedasticity |
| D. | Autocorrelation |
| Answer» B. Multicollinearity | |
| 306. |
Durbin Watson test is associated with: |
| A. | Heteroscedasticity |
| B. | Multicollinearity |
| C. | Autocorrelation |
| D. | Both a and c |
| Answer» D. Both a and c | |
| 307. |
Which one of the following is NOT a plausible remedy for near multicollinearity? |
| A. | Use principal components analysis |
| B. | Drop one of the collinear variables |
| C. | Use a longer run of data |
| D. | Take logarithems of each of the variables |
| Answer» E. | |
| 308. |
When there are both qualitative and quantitative variables are there in the model, |
| A. | ANOVA |
| B. | ANCOVA |
| C. | CHI SQUARE |
| D. | All of the above |
| Answer» C. CHI SQUARE | |
| 309. |
Homogeneity of three or more population correlation coefficients can be tested by |
| A. | F-test |
| B. | t-test |
| C. | Z-test |
| D. | χ2-test |
| Answer» E. | |
| 310. |
Which one is equal to explained variation divided by total variation? |
| A. | Sum of squares due to regression |
| B. | Coefficient of Determination |
| C. | Standard Error of Estimate |
| D. | Coefficient of Correlation |
| Answer» C. Standard Error of Estimate | |
| 311. |
The coefficient of determination, r2 shows |
| A. | Proportion of the variation in the dependent variable Y is explained by the independent variable X |
| B. | Proportion of the variation in the dependent variable X is explained by the independent variable Y |
| C. | Proportion of the variation in ui is explained by the independent variable X |
| D. | Both a and c |
| Answer» B. Proportion of the variation in the dependent variable X is explained by the independent variable Y | |
| 312. |
A Type I error occurs when we: |
| A. | reject a false null hypothesis |
| B. | reject a true null hypothesis |
| C. | do not reject a false null hypothesis |
| D. | do not reject a true null hypothesis |
| Answer» C. do not reject a false null hypothesis | |
| 313. |
Which one is not the assumption of OLS? |
| A. | Perfect Multicollinearity |
| B. | zero covariance between error terms |
| C. | equal variance of disturbances |
| D. | Mean value of disturbances is |
| Answer» B. zero covariance between error terms | |
| 314. |
White's test is used for the detection of -----------? |
| A. | multicollinearity |
| B. | hetroscedasticity |
| C. | Autocorrelation |
| D. | None of the above |
| Answer» C. Autocorrelation | |
| 315. |
A sure way of removing multicollinearity from the model is to |
| A. | Work with panel data |
| B. | Drop variables that cause multicollinearity in the first place |
| C. | Transform the variables by first differencing them |
| D. | Obtaining additional sample data |
| Answer» C. Transform the variables by first differencing them | |
| 316. |
Consider a large population with a mean of 160 and a standard deviation of 25. A random sample of size 64 is taken from this population. What is the standard deviation of the sample mean? |
| A. | 3.125 |
| B. | 2.5 |
| C. | 3.75 |
| D. | 5.625 |
| Answer» B. 2.5 | |
| 317. |
All are the types of specification errors EXCEPT: |
| A. | Omission of relevant variable |
| B. | Inclusion of unnecessary variable |
| C. | errors of measurement |
| D. | over identified |
| Answer» E. | |
| 318. |
Two events, A and B, are said to be mutually exclusive if: |
| A. | P(A | B) = 1 |
| B. | P(B | A) = 1 |
| C. | P(A and B) = 1 |
| D. | P(A and B) = 0 |
| Answer» E. | |
| 319. |
In the case of multicollinearity which test will be insignificant? |
| A. | f test |
| B. | t test |
| C. | both a and b |
| D. | both are significant |
| Answer» C. both a and b | |
| 320. |
Scaling a dependent variable in log form in the log-lin model will------------ |
| A. | change both the intercept and slope |
| B. | change the slope but not the intercept |
| C. | change the intercept but not the slope |
| D. | intercept and slope both remains unchanged |
| Answer» D. intercept and slope both remains unchanged | |
| 321. |
Individual respondents, focus groups, and panels of respondents are categorised as |
| A. | Primary Data Sources |
| B. | Secondary Data Sources |
| C. | Itemized Data Sources |
| D. | Pointed Data Sources |
| Answer» B. Secondary Data Sources | |
| 322. |
Hetroscedasticity is generally occurred in |
| A. | Cross-section data |
| B. | Time series data |
| C. | Pooled data |
| D. | None of the above |
| Answer» B. Time series data | |
| 323. |
Data on one or variables collected at a given point of time |
| A. | Panel Data |
| B. | Time series data |
| C. | Pooled data |
| D. | Cross-section data |
| Answer» E. | |
| 324. |
The regression coefficient estimated in the presence of autocorrelation in the sample data are NOT |
| A. | Unbiased estimators |
| B. | Consistent estimators |
| C. | Efficient estimators |
| D. | Linear estimators |
| Answer» D. Linear estimators | |
| 325. |
The scale applied in statistics which imparts a difference of magnitude and proportions isconsidered as |
| A. | Exponential Scale |
| B. | Goodness Scale |
| C. | Ratio Scale |
| D. | Satisfactory Scale |
| Answer» D. Satisfactory Scale | |
| 326. |
When is the problem of dummy variable trap occur? |
| A. | When we take dummy variables more than the categories |
| B. | When we take dummy variables less than the categories |
| C. | When we take dummy variables equal to the no of categories |
| D. | Both a and c |
| Answer» E. | |
| 327. |
What would be then consequences for the OLSestimator if heteroscedasticity is present in a regression model but ignored? |
| A. | It will be ignored |
| B. | It will be inconsistent |
| C. | It will be inefficient |
| D. | All of a),c), b) will be true. |
| Answer» D. All of a),c), b) will be true. | |
| 328. |
Formula of coefficient determination is |
| A. | 1+RSS/TSS |
| B. | 1-RSS/ESS |
| C. | 1-RSS/TSS |
| D. | 1*RSS/TSS |
| Answer» D. 1*RSS/TSS | |
| 329. |
In the regression function y=α + βx +c |
| A. | x is the regressor |
| B. | Y is the regressor |
| C. | x is the regressand |
| D. | none of these |
| Answer» B. Y is the regressor | |
| 330. |
In confidence interval estimation, α = 5%, this means that this interval includes the true β withprobability of |
| A. | 0.50% |
| B. | 50% |
| C. | 5% |
| D. | 95% |
| Answer» E. | |
| 331. |
Which file format should you use to display photographs and othercontinuous-tone Images on the Web? |
| A. | GIF |
| B. | TIFF |
| C. | |
| D. | JPEG |
| Answer» D. JPEG | |
| 332. |
Photoshop is |
| A. | Audio editor |
| B. | A pixel graphics editor |
| C. | Word processing software |
| D. | Accounting package |
| Answer» C. Word processing software | |
| 333. |
Rendering is the process |
| A. | slowing the speed of data communication |
| B. | generating an image from a model by means of computer programs |
| C. | Converting an audio file in to another format |
| D. | None of these |
| Answer» C. Converting an audio file in to another format | |
| 334. |
Dealing with Colour |
| A. | balancing pixels |
| B. | scaling files |
| C. | masking |
| D. | contrast |
| Answer» E. | |
| 335. |
Digital storage medium |
| A. | hard disc |
| B. | usb port |
| C. | monitor |
| D. | none of the above |
| Answer» B. usb port | |
| 336. |
The tool used for dividing an image into slices. |
| A. | gradient tool |
| B. | slice tool |
| C. | burn tool |
| D. | all of the above |
| Answer» C. burn tool | |
| 337. |
A tool for universal document exchange |
| A. | pagemaker |
| B. | coreldraw |
| C. | adobe acrobat |
| D. | none of above |
| Answer» D. none of above | |
| 338. |
The place we store our files in Windows |
| A. | home page |
| B. | folder |
| C. | recycle bin |
| D. | none of above |
| Answer» C. recycle bin | |
| 339. |
-------------- tool is used to scroll the zoom in pages. |
| A. | zoom tool |
| B. | notes tool |
| C. | hand tool |
| D. | none of the above |
| Answer» D. none of the above | |
| 340. |
Photoshop file extension is |
| A. | psd |
| B. | pdb |
| C. | cdr |
| D. | gif |
| Answer» B. pdb | |
| 341. |
Bitmap images are made of |
| A. | picture |
| B. | pixels |
| C. | lines and curves |
| D. | none of the above |
| Answer» D. none of the above | |
| 342. |
Image file formats |
| A. | pmd |
| B. | gif |
| C. | midi |
| D. | dtp |
| Answer» C. midi | |
| 343. |
TIFF |
| A. | image file formats |
| B. | audio file format |
| C. | video file format |
| D. | none of the above |
| Answer» B. audio file format | |
| 344. |
Cross platform Authoring tools |
| A. | for compatibility |
| B. | for high resolution |
| C. | for multi language |
| D. | for different countries |
| Answer» B. for high resolution | |
| 345. |
Advantages of Icon based authoring Tool |
| A. | complex interaction and layering of multimedia products. |
| B. | for simple linear presentation |
| C. | video presentation made easy |
| D. | none of the above |
| Answer» B. for simple linear presentation | |
| 346. |
GUI |
| A. | graphical user interface |
| B. | graphics universal institution |
| C. | graphical units of india |
| D. | general user interface |
| Answer» B. graphics universal institution | |
| 347. |
Audio |
| A. | bmp |
| B. | gif |
| C. | midi |
| D. | psd |
| Answer» D. psd | |
| 348. |
The tool which works like a real life paint brush and allows drawing smooth strokesof color. |
| A. | paint brush |
| B. | airbrush |
| C. | history brush |
| D. | all of the above |
| Answer» C. history brush | |
| 349. |
Which of the following documents handling system is not used for storage ofdocuments |
| A. | cd-rom |
| B. | microfiche |
| C. | microfilm |
| D. | none of these |
| Answer» B. microfiche | |
| 350. |
Any machine capable of representing information from a computer is…………….. . |
| A. | output device |
| B. | input device |
| C. | both a and b |
| D. | none of the above |
| Answer» B. input device | |