MCQOPTIONS
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MCQOPTIONS
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. |
AFTER_SOME_TIME,_I_IN_THE_EQUATION_OF_LCL_BECOMES_HIGH._WHAT_WILL_BE_THE_VALUE_OF_‚ÂÀ√≠¬¨‚Ñ¢_WHEN_THIS_OCCURS?_YOU_MAY_USE,_LCL=9.38,_THE_STANDARD_DEVIATION=_1_AND_THE_TARGET_MEAN_=_10.?$# |
| A. | 0.1 |
| B. | 2.8 |
| C. | 3.0 |
| D. | 6.0 |
| Answer» B. 2.8 | |
| 2. |
When the value of λ is small, and if the value of EWMA is on one side of the CL and the shift of mean occurs in the opposite direction, EWMA takes several periods to react to that shift. This is called _____$# |
| A. | Weight effect |
| B. | Stationary effect |
| C. | Inertia effect |
| D. | Tendency effect |
| Answer» D. Tendency effect | |
| 3. |
Which_of_the_parameters_are_chosen_wisely_in_the_case_of_EWMA_charts_to_get_a_desired_ARL?$ |
| A. | Only L |
| B. | Only σ |
| C. | Both, L and λ |
| D. | Only λ |
| Answer» D. Only ‚âà√≠¬¨‚Ñ¢ | |
| 4. |
ARL of the process, when EWMA is used, does not depend on σ.$ |
| A. | True |
| B. | False |
| Answer» C. | |
| 5. |
The control limits of EWMA charts do not depend on the sample number when the sample number becomes quite large. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 6. |
Which of these values of λ gives the weights given to current and previous observations matching as closely as possible the weights when these observations give by a Shewhart chart with the WE rules?$ |
| A. | 0.7 |
| B. | 0.9 |
| C. | 0.2 |
| D. | 0.4 |
| Answer» E. | |
| 7. |
How is the effectiveness of EWMA charts by inertia effect? |
| A. | Increase |
| B. | Decrease |
| C. | No change |
| D. | Can either decrease or increase |
| Answer» C. No change | |
| 8. |
What will be the value of the UCL for a control chart, which has the value of λ=0.10, L=2.7, σ=1 and μ0=10? The value of i can be assumed quite large.$ |
| A. | UCL=10.67 |
| B. | UCL=10.62 |
| C. | UCL=9.38 |
| D. | UCL=9.37 |
| Answer» C. UCL=9.38 | |
| 9. |
What is the value of L=2.27 upper control limit for a EWMA chart which has value of λ=0.10 and the value of the standard deviation σ=1 and the value of μ0=10?$ |
| A. | 10.41 |
| B. | 9.59 |
| C. | 10.27 |
| D. | 10.10 |
| Answer» D. 10.10 | |
| 10. |
What is the center line value of the EWMA charts? |
| A. | 0 |
| B. | 1 |
| C. | <span style="text-decoration:overline;">x</span> |
| D. | μ<sub>0</sub> |
| Answer» E. | |