A statistic is an unbiased estimator of a parameter when (a) the statistic is ca

Question

A statistic is an unbiased estimator of a parameter when (a) the statistic is calculated from a random sample. (b) in a single sample, the value of the statistic is equal to the value of the parameter. (o) in many samples, the values of the statistic are centered at the value of the parameter. (d) in many samples, the values of the statistic are very close to the value of the parameter. (E)in many samples, the distribution of the statistic has a shape that is approximately Normal 8. 9. Increasing the sample size of an opinion poll will

Explanation / Answer

A statistics is unbiased estimator of parameter if expected value of statistics is equal to parameter need to be estimated.

That is distribution of statistics should be centered at the valeu of parameter.

Correct option is C.

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