STAT210prob3.11: STAT210prob3.11: Tensile Strength of Portland Cement

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

STAT210prob3.11: Tensile Strength of Portland Cement

Description

The tensile strength of Portland cement is being studied and four different mixing techniques can be used economically. A completely randomized experiment was conducted.

Usage

STAT210prob3.11

Format

A data frame with 16 observations (rows) and 3 variables (columns).

	Column name	Data type	Description	Values
[,1]	X	integer	Cement ID number	(1 - 16)
[,2]	Technique	integer	4 mixing techniques	(1 - 4)
[,3]	Tensile_Strength	integer	Tensile strength in lb/in ^2	(2600 - 3300)

Details

This is data from Exercise 3.11 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

# A short summary of the variables
summary(STAT210prob3.11)

# Tensile strength for each mixing method
boxplot(Tensile_Strength ~ Technique,
        data = STAT210prob3.11, col = "plum4")

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