Data for Exercise 10.24 and 10.25

`Coaxial`

A data frame/tibble with 45 observations on two variables

- signal
signal loss per 1000 feet

- cable
factor with three levels of coaxial cable

`typeA`

,`typeB`

, and`typeC`

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

```
boxplot(signal ~ cable, data = Coaxial, col = c("red", "green", "yellow"))
kruskal.test(signal ~ cable, data = Coaxial)
#>
#> Kruskal-Wallis rank sum test
#>
#> data: signal by cable
#> Kruskal-Wallis chi-squared = 3.138, df = 2, p-value = 0.2083
#>
```