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This section includes 10 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. |
The gap between the UCL and LCL is double the gap between either one of them and the Center line, for the standardized chart. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 2. |
We cannot analyze abnormal runs or patterns directly, on p-chart with variable sample size. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 3. |
If type II error probability for a process is 0.8594, its ARL will be ____ |
| A. | 8 |
| B. | 1 |
| C. | 3 |
| D. | 7 |
| Answer» E. | |
| 4. |
If a process is out of control, what will be its ARL for the fraction nonconforming chart? |
| A. | (ARL_1= frac{1}{1- } ) |
| B. | (ARL_1= frac{1- }{1+ } ) |
| C. | (ARL_1= frac{1}{1+ } ) |
| D. | (ARL_1= frac{1+ }{1- } ) |
| Answer» B. (ARL_1= frac{1- }{1+ } ) | |
| 5. |
If the process is in control, the ARL for the fraction nonconforming chart, is calculated by __________ |
| A. | (ARL_0= frac{1}{ alpha} ) |
| B. | (ARL_0= frac{1}{1- alpha} ) |
| C. | (ARL_0= frac{ beta}{ alpha} ) |
| D. | (ARL_0= frac{1}{ alpha beta} ) |
| Answer» B. (ARL_0= frac{1}{1- alpha} ) | |
| 6. |
ARL (Average run length) for the fraction nonconforming control chart, is calculated by ___________ |
| A. | ARl=1/ |
| B. | ARL= / |
| C. | ARL=1/ n |
| D. | ARL= ( frac{1}{probability , of ,sample ,point , plots , out , of , control} ) |
| Answer» E. | |
| 7. |
An OC curve is a display of ___________ |
| A. | Error against defectives in a process output over a limited period of time |
| B. | Error against time |
| C. | Error against the process fraction nonconforming |
| D. | Fraction nonconforming against Error |
| Answer» D. Fraction nonconforming against Error | |
| 8. |
A type II error is also called a ___________ |
| A. | Error |
| B. | Error |
| C. | Error |
| D. | Error |
| Answer» D. Error | |
| 9. |
To deal with the variable sample size, the standardized chart is used, which has its upper limit at ___________ |
| A. | 3 |
| B. | -3 |
| C. | 1 |
| D. | 0 |
| Answer» B. -3 | |
| 10. |
The standardized control chart has the center line at ____________ |
| A. | 1 |
| B. | 2 |
| C. | Zero |
| D. | -1 |
| Answer» D. -1 | |