ex1916: Vitamin C and Colds
In Sleuth2: Data Sets from Ramsey and Schafer's "Statistical Sleuth (2nd Ed)"
ex1916 R Documentation
Vitamin C and Colds
Description
Fictitious data set based on results of an experiment where subjects
were randomly divided into two groups and given a placebo or vitamin c
to take during the cold season. At the end of the cold season, the
subjects were interviewed by a physician who determined whether they
had or had not suffered a cold during the period. Skeptics interviewed
the 800 subjects to determine who knew and who did not know to which
group they had been assigned. Vitamin C has a bitter taste and those
familiar with it could recognize whether their pills contained it.
Usage
ex1916
Format
A data frame with 4 observations on the following 4 variables.
Knewa factor with levels "no" and "yes"
Treatmenta factor with levels "placebo" and
"vitC"
Coldnumber of people who got a cold
NoColdnumber of people who did not get a cold
Source
Ramsey, F.L. and Schafer, D.W. (2002). The Statistical Sleuth: A
Course in Methods of Data Analysis (2nd ed), Duxbury.
Examples
str(ex1916)
Sleuth2 documentation built on May 29, 2024, 7:37 a.m.
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| ex1916 | R Documentation |
Vitamin C and Colds
Description
Fictitious data set based on results of an experiment where subjects were randomly divided into two groups and given a placebo or vitamin c to take during the cold season. At the end of the cold season, the subjects were interviewed by a physician who determined whether they had or had not suffered a cold during the period. Skeptics interviewed the 800 subjects to determine who knew and who did not know to which group they had been assigned. Vitamin C has a bitter taste and those familiar with it could recognize whether their pills contained it.
Usage
ex1916Format
A data frame with 4 observations on the following 4 variables.
Knewa factor with levels
"no"and"yes"Treatmenta factor with levels
"placebo"and"vitC"Coldnumber of people who got a cold
NoColdnumber of people who did not get a cold
Source
Ramsey, F.L. and Schafer, D.W. (2002). The Statistical Sleuth: A Course in Methods of Data Analysis (2nd ed), Duxbury.
Examples
str(ex1916)
R Package Documentation
Browse R Packages
We want your feedback!
Note that we can't provide technical support on individual packages. You should contact the package authors for that.
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