Regression analysis QUESTION 14 Consider a model for output Wiscosity, y, based

Question

Regression analysis

QUESTION 14 Consider a model for output Wiscosity, y, based on reaction temperature X1 reaction pressure x2 concentration X3 Which one is the full quadratic model that includes interaction terms. y B0 B1X1 B2x2 B3x3 B4x1X2 B5x1x3 B6x2x3 B2x2 B3x3 B4x1X2 B5x1x3 B6x2x3 B4x1 B5x2 B6x3 B2x2 B3x3 None of the above QUESTION 15 'Which of the following are true about Mallows' Cp statistic? Generally large values of Cp are desirable Cp is used as a criterion for model selection The result is not sensitive to the estimate 02 All of the above

Explanation / Answer

Question 14) Y = B0+B1X1+B2X2+B3X3+B4X1X2+B5X1X3+B6X2X3

Question 15) Cp is used as an criterion for model selection

Question 16) The estimated value of B = 0

Question 17) 2 & 4

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