MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
This section includes 9 Mcqs, each offering curated multiple-choice questions to sharpen your Data Science knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Power is the probability of rejecting the null hypothesis when it is true. |
| A. | True |
| B. | False |
| Answer» C. | |
| 2. |
Which of the following tool is used for estimating standard errors and the bias of estimators? |
| A. | knitr |
| B. | jackknife |
| C. | ggplot2 |
| D. | all of the mentioned |
| Answer» D. all of the mentioned | |
| 3. |
Which of the following tool is used for constructing confidence intervals and calculating standard errors for difficult statistics? |
| A. | baggyer |
| B. | bootstrap |
| C. | jacknife |
| D. | none of the mentioned |
| Answer» C. jacknife | |
| 4. |
The pooled estimator is a mixture of the group variances, placing greater weight on whichever has a larger sample size. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 5. |
Which of the following is the oldest multiple testing correction? |
| A. | Bonferroni correction |
| B. | Bernoulli correction |
| C. | Likelihood correction |
| D. | All of the mentioned |
| Answer» B. Bernoulli correction | |
| 6. |
Point out the wrong statement with respect to FDR. |
| A. | FDR is difficult to calculate |
| B. | FDR is relatively less conservative |
| C. | FDR allows for more false positives |
| D. | None of the mentioned |
| Answer» B. FDR is relatively less conservative | |
| 7. |
What is the purpose of multiple testing in statistical inference? |
| A. | Minimize errors |
| B. | Minimize false positives |
| C. | Minimize false negatives |
| D. | All of the mentioned |
| Answer» E. | |
| 8. |
Which of the following value is the most common measure of statistical significance ? |
| A. | P |
| B. | A |
| C. | L |
| D. | All of the mentioned |
| Answer» B. A | |
| 9. |
Which of the following testing is concerned with making decisions using data? |
| A. | Probability |
| B. | Hypothesis |
| C. | Causal |
| D. | None of the mentioned |
| Answer» C. Causal | |