Case-control studies are among the most commonly used means of assessing association between exposure and outcome. Sample size determination and the optimal control-to-case ratio are vital to the ...
Choosing the proper sample size for an investigation is one of the crucial jobs required of a statistician. Regardless of whether the statistician is deciding the number of patients to select in a ...
A careful derivation of an approximate sample size formula for testing the difference between two independent binomial proportions with specified probabilities of ...
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