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Estimated lot percent nonconforming (ϖ)
  Calculates the "estimated lot percent nonconforming" (ϖ) (or "defective"), for the standard deviation method as in Table B-5, in ANSI/ASQC Z1.9-1980.
2024.Nov.25 05:27:01
n Sample size (n ≥ 3).
Q Quality index.
  Calculates the "estimated lot percent nonconforming" (ϖ) (or "defective"), for the standard deviation method. Reproduces Table B-5, in ANSI/ASQC Z1.9-1980 (pp 43–51), former Z1.9-1972 (or Mil-Std-414)
References:

• "ANSI/ASQC Z1.9-2003: sampling procedures and tables for inspection by variables for percent nonconforming", ASQ (American Society for Quality).

• "ISO 3951-1:2007: sampling procedures for inspection by variables — Part 1: specification for single sampling plans indexed by acceptance quality limit (AQL) for lot-by-lot inspection for a single quality characteristic and a single AQL", ISO (International Organization for Standadization).

• "ISO 3951-2:2007: sampling procedures for inspection by variables — Part 2: general specification for single sampling plans indexed by acceptance quality limit (AQL) for lot-by-lot inspection of independent quality characteristics", ISO (International Organization for Standadization).

• "ISO 3951-3:2007: sampling procedures for inspection by variables — Part 3: double sampling schemes indexed by acceptance quality limit (AQL) for lot-by-lot inspection", ISO (International Organization for Standadization).

 
 
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Created: 1999-08-25 — Last modified: 2007-10-11