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Multiple choice: Select the best answer for Exercises 21 to 24. A statistic is an
Chapter 7, Problem 22(choose chapter or problem)
Multiple choice: Select the best answer for Exercises 21 to 24. 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. (c) in many samples, the values of the statistic are very close to the value of the parameter. (d) in many samples, the values of the statistic are centered at the value of the parameter. (e) in many samples, the distribution of the statistic has a shape that is approximately Normal.
Questions & Answers
QUESTION:
Multiple choice: Select the best answer for Exercises 21 to 24. 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. (c) in many samples, the values of the statistic are very close to the value of the parameter. (d) in many samples, the values of the statistic are centered at the value of the parameter. (e) in many samples, the distribution of the statistic has a shape that is approximately Normal.
ANSWER:Step 1 of 2
We have define when a statistic is an unbiased estimator of a parameter: