BSDA (version 1.01)

Stamp: 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

Examples

# NOT RUN {
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)
# }