Reconsider the crack experiment from Exercise 13.19. Suppose that the two crack-length measurements were made on two cracks that formed in the same test coupon at each set of test conditions. Are the two observations replicates? How do you think this data should be analyzed?
Answer to relevant QuestionsAn article by L.B. Hare (“In the Soup: A Case Study to Identify Contributors to Filling Variability,” Journal of Quality Technology, vol. 20, pp. 36-43) describe a factorial experiment used to study the filling ...Consider the leaf spring experiment in Exercise 14.9. Suppose that factor E (quench oil temperature) is very difficult to control during manufacturing. We want to have the mean spring height as close to 7.50 as possible with ...An article in the Journal of Chromatography A ("Optimization of the Capillary Electrophoresis Separation of Ranitidine and Related Compounds," Vol. 766, pp. 245-254) describes an experiment to optimize the production of ...A second-order response surface model in two variables is yˆ 69.0 1.6 x1 1.1x2 1x12 1.2 x22 0.3x1 x2 (a) Derive an item-by-item sequential-sampling plan for which p1 = 0.01, a = 0.05, p2 = 0.10, and β= 0.10. (b) Draw the OC curve for this plan.
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