Sample OCP app that implements a Sample Size Calculator tool using the @zaiusinc/app-sdk. This app provides sample size calculations for A/B tests and experiments using the new Optimizely Stats Engine ...

The sample size calculator allows you to calculate the required responding sample size, standard error, RSE, and a confidence interval (95% or 99%) for a proportion estimate, using just one of these ...

What is stratified random sampling? Stratified random sampling is the technique of breaking the population of interest into groups (called strata) and selecting a random sample from within each of ...

Power analyses and sample size calculations are important parts of many research projects. Often, before data are even collected, it is necessary to calculate and justify the required sample size for ...

Free WordPress Plugin: This sample size calculator enables you to calculate the minimum sample size and the margin of error. Learn about sample size, the margin of ...

Abstract: For the reliability and general ability of the results of any epidemiological or medical research study, adequate number of study units is extremely important. Study of both less than needed ...