Hello, I am a 16 year old student and a beginner to statistics. I'm lost. Currently I only have Microsoft Excel 97. And I would like to know the differences between the following ANOVA tests (in Excel): ANOVA Single Factor ANOVA Two-Factors with replication ANOVA Two-Factors without replication What do all these mean? Where and when should they be applied? And can anyone please use simple english terms to explain? I am only a beginner. What is one-way or two-way ANOVA? How about for T-Test? T-Test: Paired two samples for means T-Test: Two-sample assuming equal variances T-Test: Two-sample assuming unequal variances Also, can I use ANOVA instead of T-test when testing null hypothesis? Between 2 groups? Thanks for your help, Edmund Sent via Deja.com http://www.deja.com/ Before you buy. =========================================================================== This list is open to everyone. Occasionally, less thoughtful people send inappropriate messages. Please DO NOT COMPLAIN TO THE POSTMASTER about these messages because the postmaster has no way of controlling them, and excessive complaints will result in termination of the list. For information about this list, including information about the problem of inappropriate messages and information about how to unsubscribe, please see the web page at http://jse.stat.ncsu.edu/ ===========================================================================