• jmcvay changed their profile picture 3 years, 5 months ago

  • Hello, all. First time poster with a question about a message that came up in Minitab when doing a Johnson transformation on some supplier data. My supplier’s data in non-normal and, without getting into all the details, this isn’t surprising to me given the process and allowed range. So in order to calculate a cpk/ppk, I used a Johnson…[Read more]