rats {faraway}

Effect of toxic agents on rats

Description

An experiment was conducted as part of an investigation to combat the effects of certain toxic agents.

Format

A data frame with 48 observations on the following 3 variables.

time

survival time in tens of hours

poison

the poison type - a factor with levels I II III

treat

the treatment - a factor with levels A B C D

Source

Box G and Cox D (1964) "An analysis of transformations" J. Roy. Stat. Soc. Series B. 26 211.