Simple Linear Regression

Oct 2010
2
0
In Simple Linear Regression model

i have the hat matrix
\(\displaystyle
h_{ij}=\dfrac{1}{n}+\dfrac{(x_i-\bar{x})(x_j-\bar{x})}{S_{xx}}
\)

\(\displaystyle
h_{ii}=\dfrac{1}{n}+\dfrac{(x_i-\bar{x})^2}{S_{xx}}
\)


what does the behavior of quantities as\(\displaystyle x_i \)moves farther from\(\displaystyle \bar{X}\)?
 
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