M-Failure Test Plan
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In an m-failure test plan, the test is successful if no more than m failures occur. For example, if m = 3, a test passes if 0, 1, 2, or 3 failures occur among N identical systems that are tested independently and have the same failure distribution.

Assumptions of the m-failure test plan:

·    For the Weibull distribution, you know the shape parameter and wish to demonstrate the scale parameter.

·    For the exponential distribution, you wish to demonstrate the scale parameter. The shape parameter is one.

·    For the extreme value, normal, lognormal, logistic, and loglogistic distributions, you know the scale parameter and wish to demonstrate the location parameter.

For more information, see Choosing between a 0-failure and m-failure test.