Power curve for the test of the hypothesis r=ro using the transformed statistic
|
z = |
0.5*loge[(1+r)/(1-r)] |
|
which follows a Normal distribution with
|
mean = |
0.5*loge[(1+r)/(1-r)] |
; variance = 1/(n-3) |
Graph shows the probability of rejecting Ho in favour of Ha, as a function of r.