False-Alarm Rate
Fraction of truly good parts that an appraiser wrongly rates as NOK — in binary attribute MSA.
Also known as: false alarm, false rejection, type I error rate (appraiser)
The false-alarm rate is the conditional probability that an appraiser rates a truly positive part (OK, ref = pos) as negative (NOK, rating = neg).
It creates scrap and rework; directly cost-driving. Wilson score CI (95 %) for the proportion.
See also
Used in
In the Algorithm Lab
Sources
- AIAG: Measurement Systems Analysis Reference Manual, 4th ed., 2010 — Kap. III-C