Question
Show that the estimator (2.68) provides autocorrelations such that $r_{x x}(0) \geqslant$ $\left|r_{x x}(m)\right|$.
Step 1
We need to show that the autocorrelation at lag 0, denoted as \( r_{xx}(0) \), is greater than or equal to the absolute value of the autocorrelation at any other lag \( m \), denoted as \( |r_{xx}(m)| \). Show more…
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