In exercise 12.28, we have the following data concerning wear of a bearing: (a) The following model
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In exercise 12.28, we have the following data concerning wear of a bearing:
(a) The following model may be considered to describe this data: y i = 00 + ?1xl, + ?2x2 + ?12x1,?x2i + ? i, for i = 1, 2... 6. The %X2 is an "interaction"' term. Fit this model and estimate the parameters.
(b) Use the models (x), (x1, x2), (x2). (x1, x2, x1x2) and compute PRESS, Cp, and s" to determine the 'best'' model.
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Related Book For
Probability & Statistics For Engineers & Scientists
ISBN: 9780130415295
7th Edition
Authors: Ronald E. Walpole, Raymond H. Myers, Sharon L. Myers, Keying
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