Dobson describes a study where one is interested in predicting a baby's birthweight based on the gestational age and the baby's gender.
A data frame with 24 observations on the following 3 variables.
gestational age in weeks
gender of the baby where 0 (1) is male (female)
birthweight of baby in grams
Dobson, A. (2001), An Introduction to Generalized Linear Models, New York: Chapman and Hall.