Stamp {BSDA}R Documentation

Thicknesses of 1872 Hidalgo stamps issued in Mexico

Description

Data for Statistical Insight Chapter 1 and Exercise 5.110

Usage

Stamp

Format

A data frame with 485 observations on the following 3 variables.

thickness
a numeric vector
thick
a numeric vector
freq
a numeric vector

Source

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

Examples

str(Stamp)
attach(Stamp)
hist(thickness,prob=TRUE,col="lightblue")
lines(density(thickness),lwd=2,col="blue")
t.test(thickness,conf.level=.99)$conf
detach(Stamp)

[Package BSDA version 0.1 Index]