openintro (version 2.0.0)

mammogram: Experiment with Mammogram Randomized

Description

An experiment where 89,835 women were randomized to either get a mammogram or a non-mammogram breast screening. The response measured was whether they had died from breast cancer within 25 years.

Usage

mammogram

Format

A data frame with 89835 observations on the following 2 variables.

breast_cancer_death

a factor with levels no yes

Examples

# NOT RUN {

table(mammogram)
chisq.test(table(mammogram))


# }