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    estimated regression line

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    (a) Complete the above table, putting the sums in the last row. What are mean of X(X(bar)) and mean of Y(Y(bar))?

    (b) Assume our estimated regression line is Y(hat)i = b0 + b1Xi and calculate b0 and b1 from this chart and provide an interpretation of each.

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    https://brainmass.com/economics/regression/estimated-regression-line-408641

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    X Y X - X(bar) (X - X(bar))2 Y - Y(bar) (X - X(bar)) (Y - Y(bar))
    3 6 2 4 3.6 7.2
    2 2 1 1 -0.4 -0.4
    1 4 0 0 1.6 0
    -1 2 -2 4 -0.4 0.8
    0 -2 -1 1 -4.4 4.4
    ∑ Xi ∑ Yi ∑ (Xi - X(bar)) ∑ (Xi - (bar))2 ∑ (Yi - Y(bar)) ∑ (Xi - X(bar) (Yi - ...

    Solution Summary

    The estimated regression line is assessed clearly.

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