unregistered
11-20-2006, 12:52 PM
Help ... I am computing a z-test for two proportions using an online calculator at www.dimensionresearch.com. The calculator returns a 2-tail confidence level expressed in a percentage, and reports whether the difference between the two samples is significant. Next, I would like to turn the output of the test into a probability or p-statistics. Does anyone know if there is a calculation for this or a look-up table? Many thanks.