Sample r versus a Hypothetical Value of rho
Using the Fisher r-to-z transformation, this page will calculate a value of z that can be applied to assess the significance of the difference between
r, the correlation observed within a sample of size n
rho, the correlation hypothesized to exist within the population of bivariate values from which the sample is randomly drawn.

If r is greater than rho, the resulting value of z will have a positive sign; if r is smaller than rho, the sign of z will be negative.

To perform the calculation, enter the relevant values into the designated cells, then click the 'Calculate' button.

for Sample

for Population

r =
 n =
rho =
z =
  P   one-tailed

Home Click this link only if you did not arrive here via the VassarStats main page.

©Richard Lowry 2001-
All rights reserved.