Name: Breaking Strength


Abstract: The quality-control director for a clothing manufacturer wants to study the effect of operators and machines on the breaking strength (in pounds) of wool and serge material.  A batch of the material is cut into square-yard pieces and these are randomly assigned, three each, to all 12 combinations of four operators and three machines chosen specifically for the experiment.


Variables (column):

  1. Operator (1-4)
  2. Machine (1-3)
  3. Breaking Strength (pounds)


Possible Uses: ANOVA, General Linear Model


References: Levine, David, Patricia Ramsey, and Robert Smidt.  Applied Statistics for Engineers and Scientists.  Upper Saddle River, NJ: Prentice Hall 2001.