A researcher takes a sample from a population and computes a statistic for the sample. Which of the following statements is correct?
a. If the sample statistic overestimates the corresponding population parameter, then the statistic is biased.
b. If the sample statistic underestimates the corresponding population parameter, then the statistic is biased.
c. If the sample statistic is equal to the corresponding population parameter, then the statistic is unbiased.
d. None of the other statements is correct.
D
Psychology
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