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Funnel Experiment - An experiment that demonstrates the effects of tampering. Marbles are dropped through a funnel in an attempt to hit a flat surfaced target below. The experiment shows that adjusting a stable process to compensate for an undesirable result or an extraordinarily good result will produce output that is worse than if the process had been left alone.
[Category=Quality ]
Source: American Society for Quality, 24 September 2010 09:18:12, http://www.asq.org/glossary/
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