Unpublished laboratory data on the proportion of affected foetuses in two groups (control and treatment) of 10 pregnant female mice (Kupper and Haseman, 1978, p. 75).
A data frame with 20 observations on the following 3 variables.
a factor with levels
a numeric vector: the total number of foetuses.
a numeric vector: the number of affected foetuses.
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.