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Which of the statements about large-sample estimation is correct? (1) An estimator should be unbiased and the spread (as meas

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Answer #1

Correct statements:

1) An estimator should be unbiased and the spread (as measured by the mean) should be as small as possible.

2) The distance between an estimate and the true value of the statistic is called the error of estimation.

3) The 95% Margin of error is: 1.96* Standard error of the estimator.

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