RT Journal Article T1 Tamaño muestral mínimo y contraste de dos proporciones binomiales. A1 Sánchez García, Miguel A1 Cuesta Alvaro, Pedro A1 Felipe Ortega, Ángel AB In this paper, we design an algorithm to calculate the minimum sample size for the two-parameter binomial test. We test H0: p1=p2=p0 against Ha: p1=p0−Δ and p2=p0+Δ, 0<Δ