This is one of the case studies from Chapter 1 of the textbook (pp. 9-10). You may load it from the URL linked above or the resampledata package.
library(resampledata)
library(tidyverse)
glimpse(Beerwings)Rows: 30
Columns: 4
$ ID <int> 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18…
$ Hotwings <int> 4, 5, 5, 6, 7, 7, 7, 8, 8, 8, 9, 11, 11, 12, 12, 13, 13, 13, …
$ Beer <int> 24, 0, 12, 12, 12, 12, 24, 24, 0, 12, 24, 24, 24, 30, 30, 24,…
$ Gender <fct> F, F, F, F, F, F, M, F, M, M, F, F, M, F, F, F, F, M, M, F, F…