A Box-Cox Power Transformation allows you to transform data to match a normal distribution. It is not a guarantee of normality. It is a quick way of transforming data to better fit a control chart.

What is non-normal data? Normally distributed data is a commonly misunderstood concept in Six Sigma. Some people believe all data collected and used for analysis must be distributed normally. But ...

The extent to which products meet specifications needs to be systematically monitored in a production process. Product quality will typically be defined by two quantities: deviations from stated ...

This is a preview. Log in through your library . Abstract The paper discusses the choice of sample size and of control limits for controlling the mean of a normal population in the most economical ...

Dublin, Sept. 23, 2025 (GLOBE NEWSWIRE) -- The "Statistical Process Control (SPC) and Control Charts for Laboratory Compliance (Oct 14, 2025)" training has been added to ResearchAndMarkets.com's ...