pt: Paper Towel Data

In greenwood-stat/catstats: Statistics for Montana State University Bobcats

Paper Towel Data

Description

These are simulated data to illustrate what could have happened in an experiment comparing the strength of different types of paper towels when they are wet. Two different brands were compared at three different levels of wetness. Strength was interpreted as how long the damp paper towel could support a weight. The paper towel was held at four corners and the weight was placed in the center. These data are used in Intermediate Statistics with R's Chapter 4: Two-Way ANOVA

Usage

pt

Format

a data.frame with 30 observations on three variables

brand

a factor containing the brand of the paper towel (either B1 or B2)

drops

the number of drops of water on the paper towel. This is stored as a factor.

responses

the number of seconds the paper towel supports the weight

References

Did these data come from somewhere?

Examples

# summary of the data
summary(pt)

# interaction plot
intplot(responses ~ brand * drops, data = pt)

greenwood-stat/catstats documentation built on Dec. 14, 2024, 6:25 p.m.