Six Sigma Green Belt Certification Practice Exam

Which option is defined as "the ability to detect the variance of a measurement as small as one-tenth of the smallest value between the specification for total tolerance or process range"?

1. Sensitivity

2. Reproducibility

3. Ordinal

4. Calibration

The correct answer is: Sensitivity

The concept described as "the ability to detect the variance of a measurement as small as one-tenth of the smallest value between the specification for total tolerance or process range" aligns with the definition of sensitivity. Sensitivity refers to the ability of a measurement system to recognize small changes or differences in a measured parameter. When a measurement system has high sensitivity, it can discern minor variations, which is crucial in quality control processes. Detecting such small variances allows for more precise monitoring and adjustments in processes, which is essential in Six Sigma methodologies to minimize defects and improve quality. Reproducibility refers to the consistency of measurements taken under different conditions, such as by different operators or in different environments, rather than the ability to detect minor variations. Ordinal relates to a type of data where the order matters but the differences between values may not be meaningful or consistent, which does not pertain to measurement sensitivity. Calibration involves the adjustment of measurement instruments to ensure accuracy but does not specifically address the capacity to detect tiny variances in measurements. Therefore, the correct context of the ability to detect small variances in measurements is best described by sensitivity.