Leverage Formula in Simple Linear Regression
For a simple linear regression model based on n observations, which of the following formulas correctly calculates the leverage of the ith observation?
A
h_i = (y_i - ŷ_i)/s_e
B
h_i = (x_i - x̄)(y_i - ȳ)/Σ(x_j - x̄)(y_j - ȳ)
C
h_i = 1/n + (x_i - x̄)²/Σ(x_j - x̄)²
D
h_i = (y_i - ŷ_i)²/Σ(y_j - ȳ)²
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