Calculate Power and Sample Size for Two Sample Mean Tests
Description
Power calculations are a critical component of any research study to determine the
minimum sample size necessary to detect differences between multiple groups. Here we
present an 'R' package, 'PASSED', that performs power and sample size calculations for
the test of two-sample means or ratios with data following beta,
gamma (Chang et al. (2011), ), normal,
Poisson (Gu et al. (2008), ), binomial, geometric, and
negative binomial (Zhu and Lakkis (2014), ) distributions.