pH, fill volume, specific gravity, etc. are examples of continuous datasets, so you can calculate process capability. Process capability analysis, along with confidence intervals, would be a good idea I think.
[quote=earth_ka]I’m conducting retrospective validation report and the statistic as tools I chose are “control chart” and “CpK”
But my factory advisor recommend me that CpK should use if the parameter is continuous such as filling voulme of product, but my parameter for 20 batches are pH, Assay, specific gravity which are individual in each batch.
So, i’m not sure i can use Cpk as a tool for my project? Plese help me T_T[/quote]