NAME:  Margarine experiment
TYPE:  Experiment
SIZE:  40 observations, 2 variables

DESCRIPTIVE ABSTRACT:
 This data set is from an experiment which examined whether there are
 differences in melting times for margarine.  Three different margarines
 (brands 1 - 3) were studied and butter was used as a control group
 (brand 4).  The sizes and shapes of the initial margarine/butter pats were as similar as possible, and there were melted one by one in a clean frying pan over a constant heat

SOURCES:
 Dean A and Vos D (1999).  Design and Analysis of Experiments.

VARIABLE DESCRIPTIONS:

 1. Brand 1-3: margarine 4: butter(brand)
 2. Melting time (time)