light.bulb: Light bulb

Description Usage Format Source References

Description

An experiment to compare the light intensities of different brands of light bulbs. (Chapter 10, Table 10.9)

Usage

1

Format

A data frame with 48 rows and 6 variables:

WATTG

wattage - 2 levels (60 or 100 watt)

CAPCTY

capacity - 2 levels (50 or 100 percent)

BRAND

brand type - 3 levels

TRTMT

treatment combination - 6 levels (BRAND X CAPCTY)

RESIST

observed resistance

ORDER

order of observation

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.


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