Technical Support – Statistical Macro Library - Large Sample

For further information and in some cases references, consult the read me files first.

Gives the large sample normal theory test of equality of two independent proportions, along with 95% confidence interval on difference in proportions).

Download readme file (ztest.txt)

• ZTEST.SPS: implements the large sample standard normal approximation test for equality of two independent proportions. Requires the MACRO procedure.