Why is the normality assumption essential to the interpretation of the capability index? A)Because a spread...
Why is the normality assumption essential to the interpretation of the capability index?
| A)Because a spread of 6 standard deviations represents 99.73% of cases |
| B) | Because the normal distribution always has a mean of 0 |
| C) | Because only normal distributions are capable of statistical control |
| D) | Because the specifications are always explained by the bell curve |
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Why is the normality assumption essential to the interpretation
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