Certified Six Sigma Black Belt Exam Certified Six Sigma Black Belt Measurement System Analysis Questions and Answers 3

Question 1

What is the primary purpose of a stability study in measurement system analysis?

Accepted Answer

To assess whether measurement results change over time

Answer

To determine if the gage can measure parts of different sizes

Answer

To compare measurements across multiple operators

Answer

To evaluate the resolution of the measuring device

Question 2

When conducting an attribute agreement analysis, what does a kappa statistic of 0.85 indicate?

Accepted Answer

Strong agreement among appraisers

Answer

Poor agreement among appraisers

Answer

Moderate agreement among appraisers

Answer

Perfect agreement among appraisers

Question 3

In a nested Gage R&R design, what distinguishes it from a crossed design?

Accepted Answer

Each part is measured by only one operator rather than all operators

Answer

Each operator measures every part multiple times

Answer

The study uses automated measurement equipment only

Answer

Parts are measured in a randomized block design

Question 4

What percentage of total variation attributed to the measurement system is generally considered marginally acceptable?

Accepted Answer

Between 10% and 30%

Answer

Less than 10%

Answer

Between 30% and 50%

Answer

Greater than 50%

Question 5

Which graphical tool is most useful for identifying operator-by-part interaction in a Gage R&R study?

Accepted Answer

Interaction plot of operator versus part

Answer

Histogram of all measurements

Answer

X-bar chart by operator

Answer

Scatter plot of measurements versus reference values

Question 6

What is the effect of inadequate measurement discrimination (resolution) on a process capability study?

Accepted Answer

It causes the capability index to appear lower than the true value

Answer

It inflates the calculated process capability index

Answer

It has no effect on capability calculations

Answer

It only affects the mean but not the spread of the data