Pregnant Female Mice Experiment

Description

Unpublished laboratory data on the proportion of affected foetuses in two groups (control and treatment) of 10 pregnant female mice (Kupper and Haseman, 1978, p. 75).

Usage

data(mice)

Format

A data frame with 20 observations on the following 3 variables.

group

a factor with levels CTRL and TREAT

n

a numeric vector: the total number of foetuses.

y

a numeric vector: the number of affected foetuses.

References

Kupper, L.L., Haseman, J.K., 1978. The use of a correlated binomial model for the analysis of a certain toxicological experiments. Biometrics 34, 69-76.