Nomograph Template

Abstract: Does a zero defect sample really mean there are zero defects? This spreadsheet utilizes a special case of the Poisson distribution to predict the worse case percent defective in a population where the sample was defect free. Use it to evaluate your current sampling process. Understanding risk is an important step when making good business decisions.

Keywords: Zero Defects; Poisson distribution; sampling

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--Dan Yohey, 10-20-2011