Topic 04 CLG Slides

# Topic 04 CLG Slides - Topic 4 CLG Addendum 1 CLG Activity#1...

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1 Topic 4 – CLG Addendum

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2 CLG Activity #1 In your groups, please attempt the first set of questions. These will involve computing various extra sums of squares.
3 Univariate and bivariate issues that may affect modeling include: For HSM, HSS, HSE, few values in the 2-5 range, most are 6-10. Male/Female imbalance (Females will have higher standard errors b/c of this) P-values indicate significant correlation among predictors.

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4 Bubble Plot (Scope for HSM*HSS) H S S 3 4 5 6 7 8 9 1 0 H S M 2 3 4 5 6 7 8 9 1 0
5 Question 4.3 The model is significant. Variable added last T-tests indicate that HSM is most important HSE may be of marginal importance HSS, SATM, SATV will not all be important, though it is possible because of collinearity that one of them might be important.

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6 Answers to 4.4 a. 26.2 b. 27.37 c. 1.53 d. 0.2156 e. 0.906 f. 0.434 g. 0.0009 h. 6.835 i. 7.7667 j. 2.306 k. 0.144 l. 0.253
7 Question 4.5 First three variables in the model should be

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## This note was uploaded on 02/20/2012 for the course STAT 502 taught by Professor Staff during the Fall '08 term at Purdue.

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Topic 04 CLG Slides - Topic 4 CLG Addendum 1 CLG Activity#1...

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