Data for Statistical Insight Chapter 8
Inmate
A data frame/tibble with 28,047 observations on two variables
a factor with levels white
,
black
, and hispanic
a factor with levels heroin
, crack
, cocaine
,
and marijuana
C. Wolf Harlow (1994), Comparing Federal and State Prison Inmates, NCJ-145864, U.S. Department of Justice, Bureau of Justice Statistics.
Kitchens, L. J. (2003) Basic Statistics and Data Analysis. Pacific Grove, CA: Brooks/Cole, a division of Thomson Learning.
T1 <- xtabs(~race + drug, data = Inmate)
T1
#> drug
#> race heroin crack cocaine marijuana
#> white 407 106 4525 2825
#> black 1156 2513 4439 442
#> hispanic 1314 348 7297 2675
chisq.test(T1)
#>
#> Pearson's Chi-squared test
#>
#> data: T1
#> X-squared = 6385.2, df = 6, p-value < 2.2e-16
#>
rm(T1)