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Solutions to problems 1 and 3 from stat 776 homework 3. The problems involve calculating sscp (sample sum of squared and centered products), csscp (centered sample sum of squared products), s (covariance matrix), x (data matrix), and r (correlation matrix) for given data sets. The solutions are based on the 5th edition of the textbook, specifically pages 145 and 146 for problem 1 and page 469 for problem 3.
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Stat 776 HW
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in 3.6 p145 [5th edition: 3.6 p146]. Note that the data matrix in the book and that in the lecture are transposed each other. (a) Find SSCP (b) Find CSSCP (c) Find S (d) Find X (e) Find R