Elizabeth Clarkson, M.S., C.Q.E., teaches, consults and writes about all things statistical from very near the geographical center of the continental U.S.

Statistical Resources

Some Useful Statistical Tables
Misplaced your SPC textbooks? Here are some tables you might need.

Z Table - Probability for normal distribution z scores

d2 Table - Table of constants to compute standard deviation from the range.

Some Useful Statistical Links
If you can't find the information you need here, here are some other places to look.

The American Society for Quality Home of the ASQ

VassarStats: Statistical Computation Website Some very useful computations performed for free, online.

Statistical Services Internet Statistics Resources Some useful links to other statistical sites.

Internet Statistical Reference Resources Some useful links to other statistical sites.

Statistical Abstract of the United States Electronic ediction of the U.S. Government's #1 best-selling book.

Statistical Reference Datasets Datasets designed for testing statistical software. Very useful if you need to evaluate software.

American Statistical Association Home of the ASA.

Quality Digest An online quality magazine.