This text provides an accessible approach to dealing with design and analysis of experiments. It should also give students a solid basis for concepts and theories that will be useful throughout their professional careers. Features new to this edition include: increased emphasis on the connection between the experiment and the model that can be developed from the results of the experiment; inclusion of material on computer output and new material on computer graphics; and the expansion and rearrangement of the chapter on factorial and fractional factorial design. The book should be of interest to students and lecturers of engineering.