Inverse Power Law Example

IPL Example

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 and with a complete MLE solution over the entire data set using ReliaSoft's ALTA. The analysis yields:

[math]\displaystyle{ \widehat{\beta }=2.616464 }[/math]

[math]\displaystyle{ \widehat{K}=0.001022 }[/math]

[math]\displaystyle{ \widehat{n}=1.327292 }[/math]