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 minimum variability. Where would you set factors A, B, C, and D to reduce variability in free height as much as possible regardless of the quench oil temperature used?
Answer to relevant QuestionsConsider the leaf spring experiment in Exercise 14.9. Rework this problem, assuming that factors A, B, and C are easy to control but factors D and E are hard to control. Using equations (14.6) and (14.7), the mean and ...Box and Liu (1999) describe an experiment flying paper helicopters where the objective is to maximize flight time. They used the central composite design shown in Table 14E.9. Each run involved a single helicopter made to ...Consider the first-order model yˆ 50 2x1 15x2 3x3 where 1 xi 1; i 1,2,3 . Find the direction of steepest ascent. Suppose that a single-sampling plan with n = 150 and c = 2 is being used for receiving inspection where the supplier ships the product in lots of size N = 3,000. (a) Draw the OC curve for this plan. (b) Draw the AOQ curve ...MIL STD 105E is being used to inspect incoming lots of size N = 5,000. Single sampling, general inspection level II, and an AQL of 0.65% are being used. (a) Find the normal, tightened, and reduced inspection plans. (b) Draw ...
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