Final04 - Exercise 4 A study was performed on the wear of a...

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Exercise 4 A study was performed on the wear of a bearing y and its relationship to x 1 = oil viscosity and x 2 = load. The following data was obtained: u ³´ ³µ ³¶ 293 1 1.6 851 230 1 15.5 816 172 1 22 1058 91 1 43 1201 113 1 33 1357 125 1 40 1115 Use the Multiple Linear Regression output from Excel (below) to answer the following questions. n := 6 y_ := mean y = 512 3 x1_ := mean x1 = 517 20 x2_ := mean x2 = 3199 3

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(a) Fit a multiple linear regression model to this data (using the Excel output). Output from TI-89 Titanium MultReg function: β 0 := 383.8 β 1 := -3.638 β 2 := -0.117 y := β 0 + β 1 x 1 + β 2 x 2 = -3.638 x 1 - .117 x 2 + 383.8 (b) Estimate 2 σ and the standard errors of the regression coefficients (again, using the output).
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Final04 - Exercise 4 A study was performed on the wear of a...

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