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Pooled TTest, TwoSample TTest
Posted:
Oct 31, 1996 3:49 AM


What is the difference between a pooled Ttest and a twosample Ttest? I have read what literature I have available, and have gleaned nothing.
NCSS Jr has a twosample Ttest procedure available, but not (apparently) a pooled Ttest. If a pooled Ttest is appropriate, can I always substitute a twosample Ttest instead?
Thanks for any information.
Cheers
Rex  Rex Boggs  Secondary Mathematics Assessment Glenmore High School  and Resource Database Rockhampton QLD  Australia  http://cqpan.cqu.edu.au/schools/smad/smad.html



