Sample Size Calculation Using Cochran's Formula R package cochranSize version 0.1.0 Provides functions to calculate the minimum required sample size for surveys and studies using Cochran's formula, including the finite population correction. Cochran's formula is a standard method in survey methodology for determining sample size based on a desired margin of error, confidence level, and (optionally) known population size. All parameters (margin of error, confidence level, and expected proportion) are fully adjustable by the user rather than fixed to any convention. Software Suggests: testthat (>= 3.0.0), knitr, rmarkdown Yosley Carrero <c3046338@newcastle.ac.uk> Comprehensive R Archive Network (CRAN) Yosley Carrero [aut, cre] MIT + file LICENSE (https://CRAN.R-project.org/package=cochranSize/LICENSE) 2026-08-08 application/tgz https://CRAN.R-project.org/package=cochranSize doi:10.32614/CRAN.package.cochranSize