MCQOPTIONS
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MCQOPTIONS
This section includes 7 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 starting value of the variable zi is always equal to 0. |
| A. | True |
| B. | False |
| Answer» C. | |
| 2. |
If the observations xi are independent random variables with variance 2 then according to the EWMA charts, the variance of zi will be ________________ |
| A. | ( sigma_{zi}^2 = sigma^2 ( frac{ }{2- })[1+(1+ )^{2i}] ) |
| B. | ( sigma_{zi}^2 = sigma^2 ( frac{ }{2- })[1+(1- )^{2i}] ) |
| C. | ( sigma_{zi}^2 = sigma^2 ( frac{ }{2- })[1-(1- )^{2i}] ) |
| D. | ( sigma_{zi}^2 = sigma^2 ( frac{ }{2+ })[1-(1- )^{2i}] ) |
| Answer» D. ( sigma_{zi}^2 = sigma^2 ( frac{ }{2+ })[1-(1- )^{2i}] ) | |
| 3. |
Which of these is the use of the EWMA charts? |
| A. | In time series modeling |
| B. | In Real-time processing |
| C. | In acceptance sampling |
| D. | In designing of experiments |
| Answer» B. In Real-time processing | |
| 4. |
GMA stands for ___________ |
| A. | Geosum moved average |
| B. | Geometric Moving average |
| C. | Geometrically moved average |
| D. | Geocentric moving average |
| Answer» C. Geometrically moved average | |
| 5. |
Which of these is another name of EWMA charts? |
| A. | GMA charts |
| B. | AMA charts |
| C. | EMA charts |
| D. | RMA charts |
| Answer» B. AMA charts | |
| 6. |
Which of these is correct for in EWMA expression? |
| A. | 0 > |
| B. | 1 < |
| C. | 1 |
| D. | 0 < 1 |
| Answer» E. | |
| 7. |
EWMA charts are better than Shewhart control charts in detecting the ___________ shifts. |
| A. | Large process |
| B. | Medium process |
| C. | Small process |
| D. | Every process |
| Answer» D. Every process | |