LINEAR ALGEBRA AND ITS APPLICATION -TEX
5th Edition
ISBN: 2818440100055
Author: Lay
Publisher: PEARSON
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Chapter 6.6, Problem 17E
- 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, y = β0 + β1x*, where x* = x − 5.5.
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