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Quotes from The Quality Management Journal. Vol. 1 — Kaoru Ishikawa

d. 1989 Japan

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90 percent of all problems can be solved by using the techniques of data stratification, histograms, and control charts. Among the causes of nonconformance, only one-fifth or less are attributable to the workers.

The Quality Management Journal. Vol. 1 (1993)

Attribution

Quotes and notes from Wikiquote: Kaoru Ishikawa (page history), available under CC BY-SA 4.0.