The idea of ANOVA
is a variable that can take one of several
one for each
An experiment has a
completely randomized design
several levels of one factor are being studied and the individuals are
randomly assigned to its levels. (There is only one way to group the
Example: Which of four advertising offers mailed to sample households produces
the highest sales?
Will a lower price in a plain mailing draw more sales on average than a higher
price in a fancy brochure? Analyzing the effect of price and layout together
Analysis of variance
is the technique used to determine
more than two
population means are equal.
is used for completely randomized, one-way designs.