The head of the quality control department at a printing company would like to carry out an experiment to determine which of three different glues results in the greatest binding strength. Although they are not of interest in the current investigation, other factors thought to affect binding strength are the number of pages in the book and whether the book is being bound as a paperback or a hardback.
a. What is the response variable in this experiment?
b. What factor will determine the experimental conditions?
c. What two extraneous factors are mentioned in the problem description? Are there other extraneous factors that should be considered?