Sample size using a confidence interval of previous 2x2 study
It calculates sample size for the bioequivalence test on ratio using a confidence interval of previous 2x2 study.
ss2x2ci(n1, n2, LL, UL, Alpha = 0.1)
n1 |
Subject count of group 1 |
n2 |
Subject count of group 2 |
LL |
Lower limit of the confidence interval of geometric mean ratio (Test/Reference) |
UL |
Upper limit of the confidence interval of geometric mean ratio (Test/Reference) |
Alpha |
Alpha level. This means (1 - alpha/2)*100 % confidence interval is given |
It calculates sample size (n per group) with CV, Alpha, and Beta for bioequivalence test.
Returns sample size (n per group) for bioequivalence test with ratio criteria.
Kyun-Seop Bae k@acr.kr
ss2x2ci(12, 13, 0.85, 1.11)
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