fraction defective

fraction defective

[′frak·shən di′fek·tiv]
(industrial engineering)
The number of units per 100 pieces which are defective in a lot; expressed as a decimal.
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To do so, ams created a statistical approach to the estimation of the undetected lot fraction defective passed by the adaptive testing method.
This then may be used to derive a calculated lot fraction defective with which the results from an adaptive test program may be compared.
The lower test time reduction in the case of Product E is consistent with its higher lot fraction defective, which means that the algorithm dynamically reduces the number of omitted tests.
a](p) is the probability of acceptance at the quality level p fraction defective
Ladany[2] determined a similar steady-state approach in conjunction with fraction defective control charts.

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