Data for Exercises 1.124 and 2.94

Bigten

Format

A data frame/tibble with 44 observations on the following four variables

school

a factor with levels Illinois, Indiana, Iowa, Michigan, Michigan State, Minnesota, Northwestern, Ohio State, Penn State, Purdue, and Wisconsin

rate

graduation rate

year

factor with two levels 1984-1985 and 1993-1994

status

factor with two levels athlete and student

Source

NCAA Graduation Rates Report, 2000.

References

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

Examples


boxplot(rate ~ status, data = subset(Bigten, year = "1993-1994"), 
horizontal = TRUE, main = "Graduation Rates 1993-1994")

with(data = Bigten,
     tapply(rate, list(year, status), mean)
)
#>          athlete  student
#> 1984-85 62.18182 65.36364
#> 1993-94 67.18182 69.81818