STAT210example3.10: STAT210example3.10: Fabric Strength and Weaving Looms

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

STAT210example3.10: Fabric Strength and Weaving Looms

Description

A textile company weaves a fabric on a large number of looms. It would like the looms to be homogeneous so that it obtains a fabric of uniform strength. The process engineer suspects that there may be significant variations in strength between looms, and to investigate this, she selects four looms at random and takes four replicates from each loom.

Usage

STAT210example3.10

Format

A data frame with 16 observations (rows) and 2 variables (columns).

	Column name	Data type	Description	Values
[,1]	Looms	factor	4 different looms	(1, 2, 3, 4)
[,2]	Strength	integer	The strength of the fabric	(90 - 99)

Details

The data is from Example 3.10 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(STAT210example3.10)

# Fabric strength for each Loom
boxplot(Strength ~ Looms, data = STAT210example3.10,
        col = "dodgerblue2")

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