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This section includes 14 Mcqs, each offering curated multiple-choice questions to sharpen your Statistical Quality Control knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
FOR_A_SET_OF_DATA_HAVING_100_OBSERVATIONS,_HOW_MANY_BINS_MUST_BE_CREATED_FOR_SATISFACTORY_RESULTS_OF_HISTOGRAM??$ |
| A. | 25 |
| B. | 10 |
| C. | 28 |
| D. | 4 |
| Answer» C. 28 | |
| 2. |
WHICH_OF_THESE_IS_NOT_THE_NAME_OF_THE_INTERVALS_CREATED_FOR_THE_CONSTRUCTION_OF_THE_HISTOGRAM??$ |
| A. | Class intervals |
| B. | Cells |
| C. | Bins |
| D. | Boxes |
| Answer» E. | |
| 3. |
Relative frequency is defined as ____$ |
| A. | difference of frequency of an observation from the highest one |
| B. | frequency of an observation |
| C. | highest known frequency among all frequencies of the data |
| D. | frequencies of each bin divided by the number of observations (n) |
| Answer» E. | |
| 4. |
The histogram has the same meaning as the box plot, i.e. there are two names of same thing.$ |
| A. | True |
| B. | False |
| Answer» C. | |
| 5. |
Frequency of a bin in the histogram must be higher than 0. |
| A. | True |
| B. | False |
| Answer» C. | |
| 6. |
Cumulative frequency plot is defined as ____ |
| A. | height of each bar less than or equal to upper limit of bin |
| B. | height of each bar more than or equal to upper limit of bin |
| C. | height of each bar less than or equal to lower limit of bin |
| D. | height of each bar more than or equal to upper limit of bin |
| Answer» B. height of each bar more than or equal to upper limit of bin | |
| 7. |
Which of these, does not take time order of observations into account? |
| A. | Time series plot |
| B. | Run chart |
| C. | Marginal plot |
| D. | Stem-and-leaf plot |
| Answer» E. | |
| 8. |
In stem-and-leaf plot, the measure of variability is _____ |
| A. | IQR |
| B. | Mean |
| C. | Median |
| D. | Third quartile |
| Answer» B. Mean | |
| 9. |
IQR is defined as ____ |
| A. | difference between fourth and first quartile |
| B. | difference between fourth and third quartile |
| C. | difference between third and first quartile |
| D. | difference between second and first quartile |
| Answer» D. difference between second and first quartile | |
| 10. |
For even number of observations of a data distribution, what is the median? |
| A. | [(n-1)/2 + 1] rank on the ascending order of observations |
| B. | (n/2) rank on the ascending order of observations |
| C. | Average of (n/2)th observation and (n/2 + 1)th observation |
| D. | Average of [(n+1) / 2] and (n/2) rank on the ascending order of observations |
| Answer» D. Average of [(n+1) / 2] and (n/2) rank on the ascending order of observations | |
| 11. |
The median for an odd number of observations is _________ where n is the number of observations. |
| A. | [(n-1)/2 + 1] rank on the ascending order of observations |
| B. | [(n+1)/2 + 1] rank on the ascending order of observations |
| C. | Average of [(n+1) / 2] and (n/2) rank on the ascending order of observations |
| D. | (n/2) rank on the ascending order of observations |
| Answer» B. [(n+1)/2 + 1] rank on the ascending order of observations | |
| 12. |
Which of these show the ordered Stem-and-Leaf Plot? |
| A. | Stems arranged by magnitude |
| B. | Stems not arranged by magnitude |
| C. | Stems and the leaves, both arranged by magnitude |
| D. | Neither stems nor leaves are arranged by magnitude |
| Answer» D. Neither stems nor leaves are arranged by magnitude | |
| 13. |
Descriptive statistics is used _____ |
| A. | To develop information regarding the product sample using the measured data |
| B. | To measure the data for a sample |
| C. | To draw conclusions about the population |
| D. | To control the variation |
| Answer» B. To measure the data for a sample | |
| 14. |
Which of these is not a tool to describe variation in product units? |
| A. | The box plot |
| B. | The histogram |
| C. | Stem-and-Leaf plot |
| D. | Acceptance Sampling |
| Answer» E. | |