Data for Statistical Insight Chapter 10

Supercar

Format

A data frame/tibble with 30 observations on two variables

speed

top speed (in miles per hour) of car without redlining

car

name of sports car

Source

Car and Drvier (July 1995).

References

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

Examples


boxplot(speed ~ car, data = Supercar, col = rainbow(6),
ylab = "Speed (mph)")

summary(aov(speed ~ car, data = Supercar))
#>             Df Sum Sq Mean Sq F value  Pr(>F)
#> car          4   1456   364.1   25.14 1.9e-08 ***
#> Residuals   25    362    14.5
#> ---
#> Signif. codes:  0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1
anova(lm(speed ~ car, data = Supercar))
#> Analysis of Variance Table
#>
#> Response: speed
#>           Df  Sum Sq Mean Sq F value    Pr(>F)
#> car        4 1456.52  364.13  25.145 1.903e-08 ***
#> Residuals 25  362.02   14.48
#> ---
#> Signif. codes:  0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1