exam.paper: Exam paper

In clayford/dvdata: Data Files for Design and Analysis of Experiments (Dean & Voss)

Description

An experiment to see whether student average exam scores differ according to exam version and color paper. (Chapter 10, Table 10.29)

Usage

exam.paper

Format

A data frame with 130 rows and 4 variables

BLOCK

block indentifier, accoding to the student's TA

A

color of exam - 2 levels (yellow or green)

B

version of exam - 2 levels

Y

exam score

Source

http://www.wright.edu/~dan.voss/bookdata/data.html

References

Dean, A. and Voss, D. (1999). Design and Analysis of Experiments. New York, Springer.

Examples

aggregate(Y ~ A*B, data=exam.paper, mean)
boxplot(Y ~ A*B, data=exam.paper)
summary(lm(Y ~ A*B, data=exam.paper))

clayford/dvdata documentation built on May 13, 2019, 7:38 p.m.