Format
A data frame with 60 observations on the following 3 variables, no
NAs. - Weight.Gain
- Weight gain (grams) of rats fed the diets.
- Diet.Amount
- Amount of protein in diet: 1 = High, 2 = Low.
- Diet.Type
- Type of protein in diet: 1 = Beef, 2 = Pork, 3 =
Cereal.
Source
Fundamentals of Exploratory Analysis of Variance, Hoaglin D.,
Mosteller F. and Tukey J. eds., Wiley, 1991, p. 100; originally from
Statistical Methods, 7th ed, Snedecor G. and Cochran W. (1980), Iowa State
Press.