= What sample sizes do I need for doing tests with a given power? =

 1. [[FAQ/dunp| Sample sizes for a given power for testing unpaired t-tests]]

 1. [[FAQ/Power| Sample sizes for a given power for testing if a correlation equals zero]] 

 1. [[FAQ/PRsq| Sample sizes for a given power in a one-way anova]] 
 
 1. [[FAQ/categ| Sample sizes for a given power comparing two independent proportions]]