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alternative hypothesis

   Also found in: Medical, Legal, Acronyms, Encyclopedia, Wikipedia, Hutchinson 0.01 sec.
alternative hypothesis
n
(Mathematics & Measurements / Statistics) Statistics the hypothesis that given data do not conform with a given null hypothesis: the null hypothesis is accepted only if its probability exceeds a predetermined significance level See hypothesis testing Compare null hypothesis


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How about considering an alternative hypothesis, along Giroux's lines?
The power of a statistical test is the probability of rejecting the null hypothesis given that the alternative hypothesis is true (Cohen, 1988; Kraemer & Thiemann, 1987; Lipsey, 1990).
In this situation, the null hypothesis is that the tumor incidence rates in the dose groups are no larger than the rate in the control group; the alternative hypothesis is that the tumor incidence rate in at least one dose group is strictly larger than in the control group.
 
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