Qualifying miles per hour and number of previous starts for drivers in 79th Indianapolis 500 race
Data for Exercises 7.11 and 7.36
Indy500
A data frame/tibble with 33 observations on four variables
a character variable with values andretti,
bachelart, boesel, brayton, c.guerrero,
cheever, fabi, fernandez, ferran, fittipaldi,
fox, goodyear, gordon, gugelmin, herta,
james, johansson, jones, lazier, luyendyk,
matsuda, matsushita, pruett, r.guerrero,
rahal, ribeiro, salazar, sharp, sullivan,
tracy, vasser, villeneuve, and zampedri
qualifying speed (in mph)
number of Indianapolis 500 starts
a numeric vector where 1 indicates the driver has 4 or fewer Indianapolis 500 starts and a 2 for drivers with 5 or more Indianapolis 500 starts
Kitchens, L. J. (2003) Basic Statistics and Data Analysis. Pacific Grove, CA: Brooks/Cole, a division of Thomson Learning.
stripchart(qualif ~ group, data = Indy500, method = "stack",
pch = 19, col = c("red", "blue"))
boxplot(qualif ~ group, data = Indy500)
t.test(qualif ~ group, data = Indy500)
## Not run:
library(ggplot2)
ggplot2::ggplot(data = Indy500, aes(sample = qualif)) +
geom_qq() +
facet_grid(group ~ .) +
theme_bw()
## End(Not run)Please choose more modern alternatives, such as Google Chrome or Mozilla Firefox.