`R/BSDA-package.R`

`Homework.Rd`

Data for Exercise 7.78

`Homework`

A data frame with 30 observations on two variables

- school
type of school either

`private`

or`public`

- time
number of hours per week spent on homework

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

```
boxplot(time ~ school, data = Homework,
ylab = "Hours per week spent on homework")
#
t.test(time ~ school, data = Homework)
#>
#> Welch Two Sample t-test
#>
#> data: time by school
#> t = 1.7134, df = 27.727, p-value = 0.09779
#> alternative hypothesis: true difference in means is not equal to 0
#> 95 percent confidence interval:
#> -0.5345122 5.9878455
#> sample estimates:
#> mean in group private mean in group public
#> 17.63333 14.90667
#>
```