Wednesday, September 19, 2012

SYSK: Simpson's Paradox

If you are conducting analysis on a set of data, you may get results that conflict with each other as you change the sample size.  This has big implications for data driven decision making.  Anyone trying to drive decisions by analyzing data needs to understand that things like this can happen and understand how to react when they do.

http://en.wikipedia.org/wiki/Simpson's_paradox