(a) The model y₁ = ẞ0 +ẞ1×1; +ẞ2×2; + B12x1,x2i+, for i = 1, 2, ..., 6 may be considered to describe the data. The X1X2 is an "interaction" term. Fit this model and estimate the parameters. y= 110 + (8.896) ×₁ + (0.115) x2 + ( − 0.01038)x1x2 (Round the constant to the nearest integer as needed. Round the x₁x2-coefficient to five decimal places as needed. Round all other coefficients to three decimal places as needed.) (b) Use the models (x1), (x1,x2), (x2), (x1,x2,X1×2) and compute PRESS, Cp, and s² to determine the "best" model. Compute PRESS for each model. Model X₁ x1,x2 PRESS (Round to one decimal place as needed.) X1, X2, X1 X2 Bearing Data y X1 x2 193 1.7 845 175 22.1 1055 112 32.9 1345 235 15.3 822 92 42.7 1199 120 40.1 1116

(a) The model y₁ = ẞ0 +ẞ1×1; +ẞ2×2; + B12x1,x2i+, for i = 1, 2, ..., 6 may be considered to describe the data. The X1X2 is an "interaction" term. Fit this model and estimate the parameters. y= 110 + (8.896) ×₁ + (0.115) x2 + ( − 0.01038)x1x2 (Round the constant to the nearest integer as needed. Round the x₁x2-coefficient to five decimal places as needed. Round all other coefficients to three decimal places as needed.) (b) Use the models (x1), (x1,x2), (x2), (x1,x2,X1×2) and compute PRESS, Cp, and s² to determine the "best" model. Compute PRESS for each model. Model X₁ x1,x2 PRESS (Round to one decimal place as needed.) X1, X2, X1 X2 Bearing Data y X1 x2 193 1.7 845 175 22.1 1055 112 32.9 1345 235 15.3 822 92 42.7 1199 120 40.1 1116

Algebra & Trigonometry with Analytic Geometry

13th Edition

ISBN:9781133382119

Author:Swokowski

Publisher:Swokowski

Chapter3: Functions And Graphs

Section3.3: Lines

Problem 76E

See similar textbooks