When We Have Two Independent Groups with Different Numbers of Subjects

Multiple Choice

When we have two independent groups with different numbers of subjects in the two groups, and we want to calculate the power we have for a given set of values of μ and σ, the N that we will use in our calculations is

A) the number of subjects in the smaller group.
B) the number of subjects in the larger group.
C) the harmonic mean of the two sample sizes.
D) the total number of subjects in our experiment.