ANOVA and the Process Behavior Chart
The peacock’s plumage serves as an example of “Fisherian runaway,” a concept of natural selection named for Sir Ronald Fisher, who also created the analysis of variance (ANOVA). Credit: Creative Commons; photo by Haribabu Pasupathy.
When Sir Ronald Fisher created the analysis of variance (ANOVA) in the 1920s, he extended the two-sample t-test to allow the comparison of k sample averages. During the same time period, Dr. Walter Shewhart was creating the process behavior chart.