ex10.42 {Devore5}R Documentation

data from exercise 10.42

Description

The ex10.42 data frame has 19 rows and 2 columns of critical flicker frequencies according to eye color.

Usage

data(ex10.42)

Format

This data frame contains the following columns:

cff
a numeric vector of critical flicker frequencies
color
eye color - a factor with levels Blue, Brown, and Green

Source

Devore, J. L. (2000) Probability and Statistics for Engineering and the Sciences (5th ed), Duxbury

Examples

data(ex10.42)
str(ex10.42)
boxplot(cff ~ color, ex10.42, horizontal = TRUE, las = 1,
  xlab = "Critical Flicker Frequency (Hz)")
fm1 <- aov(cff ~ color, data = ex10.42)
summary(fm1)

[Package Devore5 version 0.4-5 Index]