* QUESTION: Is there a way to do a t-test in SPSS when only the means, standard deviations, and Ns are available? * ANSWER posted to SPSSX-L by Tingyu Wang on 2001/4/30. MATRIX DATA VARIABLES=GROUP ROWTYPE_ SCORE /FACTORS=GROUP. BEGIN DATA 1 N 20 1 MEAN 55 1 STDDEV 1.2 2 N 20 2 MEAN 68 2 STDDEV 1.8 END DATA. ONEWAY SCORE BY GROUP /MATRIX =IN(*).