1. P

    2-sample t-test shows no equal means, can I still compare capabilty analysis and Ppk's?

    I want to compare two categorical situations (old vs. new part in a machine) with the continuous CTQ, the y-variable. In order to compare the 2 situations, I found the proper distribution and compared the two Ppk values. I saw a significant difference in performance (the new part was +-3 times...
  2. O

    How to prepare predictive model in R for future defect capability process ?

    Hi there, I'm a newbie of R language and predictive analytics but I have a solid foundation of Business Intelligence and Data warehouse field. Currently I want to learn and gather a big picture on how to create R script to make a prediction model of detecting future defect process based on...