Show that (a) 2, the random variable corresponding to 2, is not an unbiased estimator of 2;
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(a) ∑2, the random variable corresponding to 2, is not an unbiased estimator of σ2;
(b) S2e = n·∑2 / n–2 is an unbiased estimator of σ2. The quantity se is often referred to as the standard error of estimate.
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John E Freunds Mathematical Statistics With Applications
ISBN: 9780134995373
8th Edition
Authors: Irwin Miller, Marylees Miller
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