Inverse Power Law Example

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This example appears in the Accelerated Life Testing Data Analysis Reference book.


Consider the following times-to-failure data at two different stress levels.

Pdf of the lognormal distribution with different log-std values.


The data set was analyzed jointly in an ALTA standard folio using the IPL-Weibull model, with a complete MLE solution over the entire data set. The analysis yields:

[math]\widehat{\beta }=2.616464\,\![/math]
[math]\widehat{K}=0.001022\,\![/math]
[math]\widehat{n}=1.327292\,\![/math]