Use the Second Partials Test to verify that the formulas for a and b given in Theorem
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Use the Second Partials Test to verify that the formulas for a and b given in Theorem 13.18 yield a minimum.
Data from in Theorem 13.18
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THEOREM 13.18 Least Squares Regression Line The least squares regression line for {(x₁, y₁), (x₂, y2),. ... (x, yn)} is given by f(x) = ax + b, where a n n n - - n n Xi i=1 i=1 n and b = n n - (x − aĹx). Yi
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Sa b ax b y i1 n 71 Soa b 2ax 2bx 2x Vi i1 i1 i1 Sha b 2ax 2nb 2 i...View the full answer
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