Hi there,

we want to use SPSS to compare two groups (2 sample t-test, independent samples). The first group contains real data, the other group is fictional. This fictional group should contain as many "subjects" as the real (1st) group. But the mean is set to 0 and the standard deviation to 1 (standard normal distribution).

There are several tools like http://in-silico.net/tools/statistics/ttest/ out there to compare two groups by adding the number of subjects, mean and std for every group independently. But how can we do this in SPSS? I only know how to test one variable (group1) against a test value (T=0).

I'm a blockhead right now. Any help is greatly appreciated!

Cheers!

Kati