In "acceptance sampling" by (Gaussian) variables,
transforms the quality index, Q, into the "estimate of the lot
percent defective" (fraction nonconforming), ϖ,
as in the standard Z1.9 [Z1.9].
Plots ϖ vs. Q, as required,
for the given sample size.
For the base data, the standard
gives ϖ = 3.95 %. |
• ANSI/ASQ Z1.9, "Sampling procedures and tables for inspection by variables
for percent nonconforming", ASQ,
Milwaukee, WI (USA).
• Google: Mil-Std-414
• Google: "acceptance sampling"
• 1629-04-14: Huygens, Christiaan (1695-07-07). |