Henry Berthold Mann (27 October 1905, Vienna – 1 February 2000, Tucson)[1] was a professor of mathematics and statistics at the Ohio State University.
Mann proved the Schnirelmann-Landau conjecture in number theory, and as a result earned the 1946 Cole Prize.
[2][6] In 1942 the Carnegie Foundation awarded Mann a fellowship to learn statistics while assisting the operations research group of Harold Hotelling at Columbia University.
Like contemporary "self-help" and "how to" books, the earlier books gave easy-to-follow examples but little theory beyond exhortations to follow three principles of Ronald A. Fisher—to "replicate", to "establish control" (for example with blocking), and to "randomize" (assignment of treatments to units).
"[7] In 1946 Mann returned to Ohio State University, where he served as a professor of mathematics until his retirement in 1964.