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The test plan is defined prior to test.
The acceptance level to rejection level ratio D as well as producer's a and consumer's b risks are the initial data for choosing the appropriate test plan.
Restrictions are the maximum allowable test time, number of products under test, number of simultaneously tested products and so on.
The test plan can be given in a graphic form determined by the acceptance and rejection boundaries, the accumulated test time of products being the abscise and the number of failures being the ordinate.
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