STAT210example2.1: STAT210example2.1: Bond Strength for Portland Cement Mortars

In thoree/stat340: Data and functions for BIAS at NMBU

STAT210example2.1: Bond Strength for Portland Cement Mortars

Description

An engineer studied a new formulation of Portland cement mortar for shorter cure time and tested the effect the new mixture had on the tension bond strength. In this data set there are a total of 20 samples of bond strength measurements for modified or unmodified mortar. The bond strength is given in kgf/cm^2 (kilogram-force per centimetre square).

Usage

STAT210example2.1

Format

A tibble with 10 observations (rows) and 2 variables (columns).

	Column name	Data type	Description	Values
[,1]	Modified	numeric	Bond strength for modified mortar	(16.35 - 17.21)
[,2]	Unmodified	numeric	Bond strength for unmodified mortar	(16.62 - 17.8)

Details

This is data from the Portland Cement example (TABLE 2.1) in Design and Analysis of Experiments, 9th Edition, EMEA Edition.

Source

Montgomery, D. C. (2019) Design and Analysis of Experiments, 9th Edition, EMEA Edition. New York: Wiley.

Examples

# Stacked data
PortlandCement <- stack(STAT210example2.1)
names(PortlandCement) <- c('Strength','Modification')

# Linear model
lm(Strength ~ Modification, data = PortlandCement)

thoree/stat340 documentation built on June 30, 2024, 4:04 p.m.