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March 24, 2016

Dr Goshworthy “may well have found the remains of a savoury sausage in the fridge” (The Poppletonian, 10 March), but he is not right “to use Hotelling’s T test to supplement his analysis of variance”. For no such test exists. However, Hotelling’s T‑squared is a multivariate distribution and might be of some use here.

R. E. Rawles
Honorary research fellow in psychology
University College London

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