ex0222: Cholesterol in Urban and Rural Guatemalans

In Sleuth2: Data Sets from Ramsey and Schafer's "Statistical Sleuth (2nd Ed)"

Description

This data comes from an observational study to contrast cholesterol levels in rural and urban Guatemalan Indians

Usage

ex0222

Format

A data frame with 94 observations on the following 2 variables.

Cholesterol

Serum total cholesterol of individual (in mg/l)

Group

a factor with levels "Rural" and "Urban" indicating to which group the individual belongs

Source

Ramsey, F.L. and Schafer, D.W. (2002). The Statistical Sleuth: A Course in Methods of Data Analysis (2nd ed), Duxbury.

References

Tejada, C., Charm, S., Guzman, M., Mendez, J. and Kurland, G. (1964). The Blood Viscosity of Various Socioeconomic Groups in Guatemala, American Journal of Clinical Nutrition: 303–308.

Examples

str(ex0222)

Example output

'data.frame':	94 obs. of  2 variables:
 $ Cholesterol: num  133 134 155 170 175 179 181 184 188 189 ...
 $ Group      : Factor w/ 2 levels "Rural","Urban": 2 2 2 2 2 2 2 2 2 2 ...

Sleuth2 documentation built on May 2, 2019, 7:01 a.m.