Muriel Bristol

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B. Muriel Bristol-Roach (21 April 1888 – 15 March 1950), Ph.D., was a scientist working in the field of alga biology who worked at the Rothamsted Experimental Station in 1919.[1] In addition to her scientific work, she is notable for being the woman whose claim to be able to tell whether the milk or the tea was poured into a cup first prompted Ronald Fisher to devise Fisher's exact test to assess the statistical significance of such claims; see lady tasting tea. The test was actually performed, and Bristol-Roach successfully identified "more than enough ... to prove her case".[2]


  1. ^ Daniel F. Jackson, Algae, Man, and the Environment: Proceedings of an International Symposium (1969) [1]
  2. ^ Sturdivant, Lt. Col. Rod. "Lady Tasting Tea" (PDF). Archived from the original (PDF) on 2004-07-10.