I also here salute the echinoderms as a noble group especially designed to puzzle the zoologist. Book: The Invertebrates: Echinodermata (1955)Author: Libbie Henrietta HymanPage: Preface See more enigmatic echinoderms.
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It must be emphasized that statistical hypotheses are to be stated before data are collected to test them. To propose hypotheses after examination of data can invalidate a statistical test. One may, however, legitimately formulate hypotheses after inspecting data if a new set of data is then collected with which to test the hypotheses. Book: […]