# Ch 8 C-W - =-= x b y b 1 Regression line = = x b b y 1 ˆ c...

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Intro Stats – Classwork Chapter 8 Year (x) Rate (y) y^ Residual 1965 19.4 1970 18.4 1975 14.8 1980 15.9 1985 15.6 1990 16.4 1995 14.8 1999 14.5 a) Scatterplot: Mean of x 1982.38 Mean of y 16.23 SD of x 12.05 SD of y 1.79 r -0.78 R-squared 0.61

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= = x y s s r b 1 10 12 14 16 18 20 1960 1970 1980 1990 2000 2010 b) Regression Line
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Unformatted text preview: =-= x b y b 1 Regression line: = + = x b b y 1 ˆ c) Residuals: y y e ˆ-=-2.50-2.00-1.50-1.00-0.50 0.00 0.50 1.00 1.50 2.00 1960 1965 1970 1975 1980 1985 1990 1995 2000 2005 d) e - f) g) h)...
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Ch 8 C-W - =-= x b y b 1 Regression line = = x b b y 1 ˆ c...

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