a. Rewrite the data in Example 1 with new x-coordinates in
Chapter 6, Problem 17E(choose chapter or problem)
a. Rewrite the data in Example 1 with new x-coordinates in mean deviation form. Let X be the associated design matrix. Why are the columns of X orthogonal?b. Write the normal equations for the data in part (a), and solve them to find the least-squares line, Reference Example 1:
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