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(i) Explain each of the following: (a) 0 is an unbiased estimator for the parameter 0. (b) A certain statistic is sufficient for the parameter

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(i) Explain each of the following: (a) 0 is an unbiased estimator for the parameter 0. (b) A certain statistic is sufficient for the parameter 0. (c) The confidence level in constructing an interval for an un- known parameter is 95%. (d) Cramer-Rao procedure yields a statistic

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