420Hw04 - STAT 420 Homework #4 (due Friday, September 21,...

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STAT 420 Fall 2007 Homework #4 (due Friday, September 21, by 3:00 p.m.) 2.2 The dataset uswages is drawn as a sample from the Current Population Survey in 1988. Fit a model with weekly wages as the response and years of education and experience as predictors. Report and give a simple interpretation to the regression coefficient for years of education. Now fit the same model but with logged weekly wages. Give an interpretation to the regression coefficient for years of education. Which interpretation is more natural? > library(faraway) See Appendix A (p. 217) for more detail on library installation. > data(uswages) > uswages[1:5,] # to see what the data set looks like wage educ exper race smsa ne mw so we pt 6085 771.60 18 18 0 1 1 0 0 0 0 23701 617.28 15 20 0 1 0 0 0 1 0 16208 957.83 16 9 0 1 0 0 1 0 0 2720 617.28 12 24 0 1 1 0 0 0 0 9723 902.18 14 12 0 1 0 1 0 0 0 > attach(uswages) After attach(uswages)
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This note was uploaded on 04/29/2010 for the course STAT stat 420 taught by Professor Stepanov during the Spring '07 term at University of Illinois at Urbana–Champaign.

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420Hw04 - STAT 420 Homework #4 (due Friday, September 21,...

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