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Mathematics, 09.10.2021 14:00 minnie7760

Suppose a measurement is made on some physical characteristic whose value is known, and let X denote the resulting measurement error. For an unbiased measuring instrument or technique, the mean value of X is 0. Assume that any particular measurement error is normally distributed with variance s2. Let X1, . . . Xn be a random sample of measurement errors. a. Obtain the method of moments estimator of s2. b. Obtain the maximum likelihood estimator of s2.

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