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Title: Measurement Decision Risk Simplified
Author: Ricardo A. Nicholas
Source: 1999 Measurement Science Conference
Year Published: 1999
Abstract: Every measurement decision has the potential of being incorrect. When the results of a measurement process indicate that the unit under test (UUT) is of acceptable quality, there is a calculable probability that the UUT is actually of unacceptable quality. The converse is also possible. Those probabilities can be referred to as Consumer and Producer Risks, respectively. Calculating those probabilities is a mathematical challenge, since double integration is the standard process used. The main focus of this paper is to present an approximation method which can be more easily intuitively grasped. Elaborate software is not needed. A general description using Microsoft Excel is provided. This approximation method can easily be made to give consumer and producer risk estimates within 0.1% of the more sophisticated double integration method. A comparison of results verifies the accuracy of those estimates.

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