Consider the response model in equation 14.5. Suppose that in the response model we allow for a complete second-order model in the noise factors so that
What effect does this have on the variance model?
Answer to relevant QuestionsConsider the first-order model yt = 75 + 10x1 + 6x2 (a) Sketch the contours of constant predicted response over the range –1 ≤ xi ≤ + 1, i = 1, 2. (b) Find the direction of steepest ascent. An article by J. J. Pignatiello, Jr. and J. S. Ramberg in the Journal of Quality Technology (Vol. 17, 1985, pp. 198- 206) describes the use of a replicated fractional factorial to investigate the effect of five factors on ...(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. We wish to find a single-sampling plan for a situation where lots are shipped from a supplier. The supplier’s process operates at a fallout level of 0.50% defective. We want the AOQL from the inspection activity to be 3%. ...The density of a plastic part used in a cellular telephone is required to be at least 0.70 g/cm3. The parts are supplied in large lots, and a variables sampling plan is to be used to sentence the lots. It is desired to have ...
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