Effect of mother's smoking on birth weight of newborn
Data for Exercise 2.27
Cigarett
A data frame/tibble with 16 observations on two variables
mothers' estimated average number of cigarettes smoked per day
children's birth weights (in pounds)
Kitchens, L. J. (2003) Basic Statistics and Data Analysis. Pacific Grove, CA: Brooks/Cole, a division of Thomson Learning.
plot(weight ~ cigarettes, data = Cigarett)
model <- lm(weight ~ cigarettes, data = Cigarett)
abline(model, col = "red")
with(data = Cigarett,
cor(weight, cigarettes)
)
rm(model)Please choose more modern alternatives, such as Google Chrome or Mozilla Firefox.