The poisons data frame has 48 rows and 3 columns.
The data form a 3x4 factorial experiment, the factors being three poisons and four treatments. Each combination of the two factors was used for four animals, the allocation to animals having been completely randomized.
poisonsThis data frame contains the following columns:
timeThe survival time of the animal in units of 10 hours.
poisonA factor with levels 1, 2 and 3 giving the type of poison used.
treatA factor with levels A, B, C and D giving the treatment.
Davison, A.C. and Hinkley, D.V. (1997) Bootstrap Methods and Their Application. Cambridge University Press.