Rat Blood Pressure

Twelve rats were chosen, and a drug was administered to six rats, the treatment group, chosen at random. The other six rats, the control group, received a placebo. The drops in blood pressure (mmHg) for the treatment group (with probability distribution F) and the control group (with probability distribution G) are stored in the variables Treat and Cont, respectively. Data are used in Example 10.18.

Format

A data frame with 6 observations on the following 2 variables:

Treat

drops in blood pressure in mmHg for treatment group

Cont

drops in blood pressure in mmHg for control group

Source

The data is originally from Ott and Mendenhall (1985, problem 8.17).

References

Ugarte, M. D., Militino, A. F., and Arnholt, A. T. (2008) Probability and Statistics with R. Chapman & Hall/CRC.

Examples

with(data = Ratbp,
boxplot(Treat, Cont))