Question

Which of the following is not necessary when performing a Gage R & R for attribute data?

A. A target % for the amount of repeatability and/or reproducibility agreement desired.
B. A measurement system that provides measurements on a continuous scale.
C. A standard to which appraisers can be evaluated.
D. At least two appraisers.
E. None of the above is necessary.

Answer 1

The correct answer is option B, A measurement system that provides measurements on a continuous scale is not necessary for Gage R & R for attribute data, as attribute data does not require a continuous scale. Gage R & R for attribute data evaluates categorical data like pass/fail or accept/reject criteria. The option is b.

Step-by-step explanation:

The question asks about performing a Gage R & R, which is a statistical tool used in quality management, specifically for assessment of a measurement system. The correct answer to the question, 'Which of the following is not necessary when performing a Gage R & R for attribute data?' is option B.

A measurement system that provides measurements on a continuous scale is not necessary for Gage R & R for attribute data since attribute data is categorical and does not require a continuous scale; instead, it is assessed on a pass/fail or an accept/reject basis.

A target percentage for repeatability and reproducibility agreement (option A), a standard for evaluation (option C), and at least two appraisers (option D) are indeed necessary components of a Gage R & R study for either attribute or variable data.

The presence of appraisers is necessary to assess inter-rater reliability, and standards are essential to determine the consistency and correctness of the measurements. The correct option is b.