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Topic: Re: How should I perform statistical significance test here?
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Luis A. Afonso

Posts: 4,758
From: LIsbon (Portugal)
Registered: 2/16/05
Re: How should I perform statistical significance test here?
Posted: Apr 2, 2014 10:34 AM
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It is quite a stupid faith to think that the null Hypotheses can be understood like it was the expression of an absolute state of truth.
The Logic is not the Classic one under uncertainty. To say as you did: << Okay, my question is what your hypothesis is? It cannot be that they are all equal as that is trivially false. >> put in evidence that you are not allowed to say whatever relating Statistical Classic Decision.
Two things are clear for me: you did not have the care to review your education and possibly the teachers you had were so careless that they did never read what R. Fisher said about one hundred years ago: we are not able to state an hypothesis under test is true or not.
In fact when we are not able to reject the alternative it can, never ever, to mean that the Null is true. This conclusion is not allowed to reach anyway: one is constrained to say only that the data under study DID NOT SHOW THE SUFFICIENT EVIDENCE THAT THE NULL IS UNTRUE . . .
(Which different to state the Null Truthfulness)
Luis A. Afonso

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