Solved: Suppose that we are fitting a line and we wish to make the variance of the
Chapter 11, Problem 11-79(choose chapter or problem)
Suppose that we are fitting a line and we wish to make the variance of the regression coefficient as small as possible. Where should the observations xi , i 1, 2, p , n, be taken so as to minimize V( )? Discuss the practical implications of this allocation of the xi .
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