Description

Data from the teaching experiment in chapter 2 of Design and Analysis of Experiments with R

Usage

Format

A data frame with 30 observations on the following 4 variables.

class

a numeric vector

method

a factor with levels 1 2 3

score

a factor with levels 1 2 3 4 5

count

a numeric vector

Source

Design and Analysis of Experiments with R, by John Lawson, CRC/Chapman Hall

Examples