test1_f04sol

test1_f04sol - 9. Confounding 10. Experiment 11. irrigation...

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Solutions to ST 370 Online First Exam, Fall 2004. 1. 19.80 2. 27 3. 10.62 4. The change in response variable means across levels of one factor depends on the levels of the other. 5. The point where 40 percent of the population or data lie above it. 6. Sample (a) has a larger mean AND more variation than (b). 7. about 1.5 to 2.5 (range/s=10/s=4 =>s=2.5,range/s=6=>s=1.7) 8. Correlation measures the strength of the linear relationship between the independent variable and the dependent variable.
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Unformatted text preview: 9. Confounding 10. Experiment 11. irrigation regime 12. growth 13. 10 (2 x 5 = 10) 14. 30 (10 x 3 = 30) 15. is useful for deciding the relative importance of factors. 16. -0.1520 (sqrt(.023133), neg. sign because of neg. slope) 17. 14.95 18. Bitrate is important when we take log(Size) into consideration. 19. Add a term log(Size)^2 to the second model. 20. 0.989...
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This note was uploaded on 01/16/2012 for the course ST 370 taught by Professor Nail during the Fall '08 term at N.C. State.

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