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آزمایش برتری
In superiority trials, all values within a CI are statistically possible.
For superiority trials, since all values within a CI are statistically possible, for ratios like relative risk (RR), odds ratio (OR), or hazards ratio (HR), if the CI includes ONE (1.0), then the results are not statistically significant (NSS).
For superiority trials, the null hypothesis (H0) is that no difference exists between studied populations (Gaddis and Gaddis, 1990c).
For superiority trials, the alternative hypothesis (H1) is that a difference does exist between studied populations (Gaddis and Gaddis, 1990c).
For superiority trials, if H0 is "rejected," this means a statistically significant difference between groups exists (results unlikely due to chance) (Gaddis and Gaddis, 1990c).
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