organelas » estatística http://organelas.com Mon, 14 Nov 2011 00:05:34 +0000 en hourly 1 http://wordpress.org/?v=3.3.1 Estatística http://organelas.com/2008/08/30/estatistica/ http://organelas.com/2008/08/30/estatistica/#comments Sat, 30 Aug 2008 14:45:55 +0000 nelas http://organelas.com/?p=151

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.

Livro: Biostatistical Analysis (Third Edition)

Autor: Jerrold H. Zar

Página: 79

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