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4 Consider a linear model with X = 1 1 1 1 1 1 1 1 1 1 0 0 00 00 00 00 1 0 0 1 Y = 31 33 44 36 38 26 b = H α1 α2 αz (a)
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4 Consider a linear model with X = 1 1 1 1 1 1 1 1 1 1 0 0 00 00 00 00 1 0 0 1 Y = 31 33 44 36 38 26 b = H α1 α2 αz (a)
4 Consider a linear model with X = 1 1 1 1 1 1 1 1 1 1 0 0 00 00 00 00 1 0 0 1 Y = 31 33 44 36 38 26 b = H α1 α2 αz (a) Write the normal equations. (b) Using the methods of Chapter 1, find two generalized inverses of X'X. (c) Use your answer to (b) to find two estimates bº. (d) Find two linear combinations of the elements of bº that are the same for both estimates and two that are different.