In my last post I introduced the idea of using the JSL script editor as a simple command line calculator; and prior to that I discussed how process capability indices (Cp,Cpk) are a convenient shorthand notation but suffer from lack of transparency. Today I will bring these two themes together by showing how I can use the JSL script editor to calculate defective parts per million (dppm) for a given set of capability indices Cp and Cpk.
JMP Software comes complete with a large number of sample data tables.
The other day I found one containing body measurement data: (more…)
I want to show you an example of some software designed to help you be more productive and consistent in applying statistical tests. It’s designed to work along side a oneway analysis of variance and will automatically assess the assumptions associated with the analysis.