Mucociliary {ACSWR}

Mucociliary Clearance

Description

Table 6.1 of Hollander and Wolfe (1999) lists the data for Half-Time of Mucociliary Clearance. We need to test if the time across various treatments is equal or not.

Usage

data(Mucociliary)

Format

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

Treatment

treatment levels Asbestosis Normal Subjects Obstructive Airways Disease

Time

half-time of mucociliary clearance

References

Hollander, M., and Wolfe, D. A. (1973-99). Nonparametric Statistical Methods, 2e. J. Wiley.

Examples

data(Mucociliary)
Mucociliary$Rank <- rank(Mucociliary$Time)
aggregate(Mucociliary$Rank,by=list(Mucociliary$Treatment),sum)
kruskal.test(Time~Treatment,data=Mucociliary)