The Online Course
A comprehensive 30-day online Acceptance Sampling course by Professor Galit Shmueli.
The Perfect Companion to SQC Online
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From the Glossary
The proportion of items (or batches, in Skip lot sampling) that are inspected during some phase, when applying continuous sampling. f is between 0 and 1. There are three ways to sample with a fraction of f:
- Probability Sampling: Each item/batch is sampled with probability f.
- Systematic Sampling: Every 1/f 'th item/batch is sampled. 1/f must then be a natural number (e.g., every 3rd item is inspected, when f=1/3).
- Block-Random Sampling: From each 1/f consecutive items/batches, one is chosen at random. 1/f must then be a natural number (e.g., in each block of 3 items one is chosen, whenf=1/3).
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