JMP Cpk analysis differences
I am used JMP 9 and have noticed the "short term" sigma and Cpk result differ depending if the cability study is initiated from Anaylze -> Distributions or from Graph -> X-Bar.I have data with fixed subgroup size of 6 units.If I run a capability study from the distribution/histogram report I get a one short term sigma. The short term Cpk result does not match the result when the same data is run ...