Results of the simulation study. Power of difference and equivalence tests as a function of relative difference dif = 100*[exp(d)-1], where d is the difference on ln scale. For dif = 0 the reported power is also the size of the difference test D. For dif = 27.2% the reported power is also the size of equivalence tests E2 and E3.
van der Voet et al. BMC Biotechnology 2011 11:15 doi:10.1186/1472-6750-11-15