The Design of Experiments

[1][2][3] Among other contributions, the book introduced the concept of the null hypothesis in the context of the lady tasting tea experiment.

Fisher introduced the null hypothesis by an example, the now famous Lady tasting tea experiment, as a casual wager.

She claimed the ability to determine the means of tea preparation by taste.

With this assumption, the number of correct guesses (the test statistic) formed a hypergeometric distribution.

Having an example, Fisher commented:[6] Regarding an alternative non-directional significance test of the Lady tasting tea experiment: Regarding which test of significance to apply: On selecting the appropriate experimental measurement and null hypothesis:

A stained-glass window in the dining hall of Gonville and Caius College, Cambridge commemorated Ronald Fisher and represented a 7 × 7 Latin square . The Sir Ronald Fisher window was removed in 2020 because of Fisher's connection with eugenics. [ 5 ]