Concrete {BSDA}R Documentation

Compressive strength of concrete blocks made by two different methods

Description

Data for Exercise 7.17

Usage

Concrete

Format

A data frame with 20 observations on the following 3 variables.

Strength
a numeric vector
Method
a numeric vector
Ranks
a numeric vector

Source

Kitchens, L. J. (2003) Basic Statistics and Data Analysis. Duxbury

Examples

str(Concrete)
attach(Concrete)
wilcox.test(Strength~Method,alternative="greater")
detach(Concrete)

[Package BSDA version 0.1 Index]