The Piston Rings data set was taken from Montgomery's book. It consists of 40 samples of size 5 each of values of the diameter of the piston rings.
A data frame with 40 observations on the following 5 variables.
The fisrt measure.
The second measure.
The third measure.
The fouth measure.
The fifth measure.
Montgomery, D.C.,(2008)."Introduction to Statistical Quality Control".4th Ed. Wiley
data(pistonrings)