MCQOPTIONS
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MCQOPTIONS
This section includes 6 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. |
X bar and S chart are more accurate in predicting out-of-control situations than the x bar and R charts, in the case of high sample size. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 2. |
X bar chart should be interpreted before s chart if both are indicating out of control situations. |
| A. | True |
| B. | False |
| Answer» C. | |
| 3. |
What is the value of the center line of the sample variance control chart? |
| A. | ( bar{s}^2 ) |
| B. | s<sup>2</sup> |
| C. | ( bar{s} ) |
| D. | ( overline{s^2} ) |
| Answer» B. s<sup>2</sup> | |
| 4. |
The control charts based directly on the sample variance are called ____________ |
| A. | s Control charts |
| B. | <sup>2</sup> Control charts |
| C. | s<sup>2</sup> Control charts |
| D. | Charts |
| Answer» D. Charts | |
| 5. |
Which one of these is correct to evaluate the mean standard deviation of the process samples? |
| A. | ( bar{s} = frac{ sum_{i=1}^m (n_i-1) s_i^2}{ sum_{i=1}^m n_i} ) |
| B. | ( bar{s} = left[ frac{ sum_{i=1}^m (n_i-1) s_i^2}{ sum_{i=1}^m n_i-m} right]^2 ) |
| C. | ( bar{s} = left[ frac{ sum_{i=1}^m (n_i-1) s_i^2}{ sum_{i=1}^m n_i-m} right]^{1/2} ) |
| D. | ( bar{s} = frac{ sum_{i=1}^m (n_i-1) s_i^2}{ sum_{i=1}^m n_i-m} ) |
| Answer» D. ( bar{s} = frac{ sum_{i=1}^m (n_i-1) s_i^2}{ sum_{i=1}^m n_i-m} ) | |
| 6. |
When the sample size is variable, which one of these can be used to evaluate the value of x double bar? |
| A. | ( frac{ sum_{i=1}^m n_i bar{x_i}}{ sum_{i=1}^n n_i} ) |
| B. | ( frac{ sum_{i=1}^n n_i bar{x_i}}{ sum_{i=1}^m n_i} ) |
| C. | ( frac{ sum_{i=1}^n n_i bar{x_i}}{ sum_{i=1}^n n_i} ) |
| D. | ( frac{ sum_{i=1}^m n_i bar{x_i}}{ sum_{i=1}^m n_i} ) |
| Answer» E. | |