Heating {BSDA}

Fuel efficiency ratings for three types of oil heaters

Description

Data for Exercise 10.32

Usage

Heating

Format

A data frame/tibble with 90 observations on the two variables

type

a factor with levels A, B, and C denoting the type of oil heater

efficiency

heater efficiency rating

References

Kitchens, L. J. (2003) Basic Statistics and Data Analysis. Pacific Grove, CA: Brooks/Cole, a division of Thomson Learning.

Examples

boxplot(efficiency ~ type, data = Heating, 
        col = c("red", "blue", "green"))
kruskal.test(efficiency ~ type, data = Heating)