I appreciate discovering basically a test where H0 might be that "the process is statistically stable."
I also practice and teach never to compute capability until after observing a "process behavior" chart, because special cause can distort the data to "impersonate" a distribution.
But this test now allows me to handle times when the eyes and brain can't quite nail down a conclusion - when the special cause looks moderate.
I appreciate discovering basically a test where H0 might be that "the process is statistically stable."
I also practice and teach never to compute capability until after observing a "process behavior" chart, because special cause can distort the data to "impersonate" a distribution.
But this test now allows me to handle times when the eyes and brain can't quite nail down a conclusion - when the special cause looks moderate.
Thank you!