MCQOPTIONS
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MCQOPTIONS
This section includes 11 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. | \(ARL_1=\frac{1}{1-β}\) |
| B. | \(ARL_1=\frac{1-β}{1+β}\) |
| C. | \(ARL_1=\frac{1}{1+β}\) |
| D. | \(ARL_1=\frac{1+β}{1-β}\) |
| Answer» B. \(ARL_1=\frac{1-β}{1+β}\) | |
| 5. |
If the for a fraction nonconforming chart, the probability of a sample point plotting out of control is 0.0531, what will be the ARL for this? |
| A. | 12.31 |
| B. | 8.16 |
| C. | 18.83 |
| D. | 22.78 |
| Answer» D. 22.78 | |
| 6. |
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. \(ARL_0=\frac{1}{1-\alpha}\) | |
| 7. |
ARL (Average run length) for the fraction nonconforming control chart, is calculated by ___________ |
| A. | ARl=1/β |
| B. | ARL=β/α |
| C. | ARL=1/βn |
| D. | ARL=\(\frac{1}{probability\, of \,sample \,point\, plots\, out\, of\, control}\) |
| Answer» E. | |
| 8. |
An OC curve is a display of ___________ |
| A. | β Error against defectives in a process output over a limited period of time |
| B. | β Error against time |
| C. | β Error against the process fraction nonconforming |
| D. | Fraction nonconforming against β Error |
| Answer» D. Fraction nonconforming against β Error | |
| 9. |
A type II error is also called a ___________ |
| A. | α Error |
| B. | δ Error |
| C. | β Error |
| D. | ∅ Error |
| Answer» D. ∅ Error | |
| 10. |
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 | |
| 11. |
The standardized control chart has the center line at ____________ |
| A. | 1 σ |
| B. | 2 σ |
| C. | Zero |
| D. | -1σ |
| Answer» D. -1σ | |