Page 181 - Intermediate Statistics for Dummies

14_045206 pt03.qxd 2/1/07 10:12 AM Page 160
In this part . . .
Y ou get all the nuts and bolts you need to understand
one-way and two-way analyses of variance (also
known as ANOVA), which compare the means of several
populations at one time, based on one or two different
characteristics. You see how to read and understand
ANOVA tables and computer output and go behind the
scenes to understand the big ideas behind the formulas
used in ANOVA. (Don’t sweat it, I always present formulas
only on a need-to-know basis.)