Data Analysis
   
 StatBook: An Electronic Textbook for Data Analysis
This is an outstanding on-line textbook. You may download StatBook and use it off-line. I strongly recommend that you use it.

 Check significance level for z, t, F, chi-sq, r
Most of the tables you'll need, but on this site it's "looked up" for you

 Practical Programs
An excellent site with excellent programs for chi-square, comparison of correlation coefficients, mediation variables, Fisher exact test, comparison of regression weights, etc. The programs are preceded by explanations of the tests.

Fast Stats
Compute t-tests, chi-square quickly on-line.
Simple Interactive Statistical Analysis

Z-test
Compute single-sample z-test; get z statistic or probability of z.

StatLib
A Data Set Library

The Pitfalls of Data Analysis
How to Avoid Lies and Damned Lies
   
   
   
 
Last Published: February 22, 2005 3:53 AM
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