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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. | |