ex0112: Fish Oil and Blood Pressure

In Sleuth3: Data Sets from Ramsey and Schafer's "Statistical Sleuth (3rd Ed)"

Description

Researchers used 7 red and 7 black playing cards to randomly assign 14 volunteer males with high blood pressure to one of two diets for four weeks: a fish oil diet and a standard oil diet. These data are the reductions in diastolic blood pressure.

Usage

ex0112

Format

A data frame with 14 observations on the following 2 variables.

BP

reduction in diastolic blood pressure (in mm of mercury)

Diet

factor variable indicating the diet that the subject followed, with levels "FishOil" and "RegularOil"

Source

Ramsey, F.L. and Schafer, D.W. (2013). The Statistical Sleuth: A Course in Methods of Data Analysis (3rd ed), Cengage Learning.

References

Knapp, H.R. and FitzGerald, G.A. (1989). The Antihypertensive Effects of Fish Oil, New England Journal of Medicine 320: 1037–1043.

Examples

str(ex0112)

Example output

'data.frame':	14 obs. of  2 variables:
 $ BP  : int  8 12 10 14 2 0 0 -6 0 1 ...
 $ Diet: Factor w/ 2 levels "FishOil","RegularOil": 1 1 1 1 1 1 1 2 2 2 ...

Sleuth3 documentation built on May 2, 2019, 6:41 a.m.