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ON THE z-TEST IN RANDOMIZED BLOCKS AND LATIN SQUARES Get access B. L. WELCH, Ph.D. B. L. WELCH, Ph.D. Search for other works by this author on: Oxford Academic Google Scholar Biometrika, Volume 29, Issue 1-2, June 1937, Pages 21–52, https://doi.org/10.1093/biomet/29.1-2.21 Published: 01 June 1937
B. L. Welch (Tue,) studied this question.