Prices paid for used books at three different bookstores

Data for Exercise 10.30 and 10.31

Bookstor

Format

A data frame/tibble with 72 observations on two variables

dollars

money obtained for selling textbooks

store

a factor with levels A, B, and C

References

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

Examples

boxplot(dollars ~ store, data = Bookstor, 
        col = c("purple", "lightblue", "cyan"))

kruskal.test(dollars ~ store, data = Bookstor)
#> 
#> 	Kruskal-Wallis rank sum test
#> 
#> data:  dollars by store
#> Kruskal-Wallis chi-squared = 6.6476, df = 2, p-value = 0.03602
#>