User talk:TrickyTank
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You said:
"Hello,
I'm still not sure why you think a composite null hypothesis is ok. You can't compute the probability of a type I error if your null hypothesis is composite. I have gone into greater detail on the Statistical Hypothesis Testing talk page.
I have responded on the article's talk page. But you might want to have a specific reference to look at: I suggest the book: Cox, D.R., Hinkley, D.V. (1974). Theoretical Statistics" Chapman & Hall. ISBN 0412124203. This has "Chapter 4: Significance tests:simple null hypotheses", and "Chapter 5: Significance tests: composite null hypotheses". Melcombe (talk) 10:20, 19 May 2010 (UTC)
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