How to perform a statistical t-test

[candyq27]

Does anyone know how to perform a statistical T-test? I have a set of data and I want to do a T test, but I'm not sure how to do one. Can someone give me instructions or let me know of a site that gives instructions how to do it? Thanks.

 

[FredGarvin]

How about:
http://www.socialresearchmethods.net/kb/stat_t.htm

You can also check these sites out:
Hyper Stat- http://davidmlane.com/hyperstat/index.html
Handbook of Statistical Practice- http://www.tufts.edu/%7Egdallal/LHSP.HTM