Plaque: Studying effect of toothpaste on plaque accumulation
In gpk: 100 Data Sets for Statistics Education
Description
Usage
Format
Details
Source
Description
Accumulation of plaque on teeth is a major cause of dental ill health. Producers of toothpaste often claim that use of their product will reduce the plaque. Data on three products are to be used to check two things (a) does a particular product reduce plaque? (b) Is reduction achieved the same for all products?
Usage
1
Format
A data frame with 60 observations on the following 3 variables.
ProductThe product
BeforePlaque score before treatment
AfterPlaque score AFTER treatment
Details
Paired t-test and one-way ANOVA may be attempted for this data set.
Source
http://ces.iisc.ernet.in/hpg/nvjoshi/statspunedatabook/databook.html
gpk documentation built on May 2, 2019, 12:39 p.m.
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Description Usage Format Details Source
Description
Accumulation of plaque on teeth is a major cause of dental ill health. Producers of toothpaste often claim that use of their product will reduce the plaque. Data on three products are to be used to check two things (a) does a particular product reduce plaque? (b) Is reduction achieved the same for all products?
Usage
1 |
Format
A data frame with 60 observations on the following 3 variables.
ProductThe product
BeforePlaque score before treatment
AfterPlaque score AFTER treatment
Details
Paired t-test and one-way ANOVA may be attempted for this data set.
Source
http://ces.iisc.ernet.in/hpg/nvjoshi/statspunedatabook/databook.html
R Package Documentation
Browse R Packages
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