Losing Sight of the Sign: ANOVA and Significance Testing (opens in new tab)

When Fisher developed the F-test at Rothamsted Experimental Station in the 1920s, he was solving a real problem. Agricultural field trials had multiple treatment conditions — different fertilizers, different watering regimes, different crop varieties — and the question was whether any of these treatments affected yield. The F-test answered exactly that question: is there more … Continue reading Losing Sight of the Sign: ANOVA and Significance Testing → The post Losing Sight of the Sign: ANOVA...