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Estimator

By Jim Frost

A sample statistic that estimates a population parameter. The value of the estimator is referred to as a point estimate. There are several different types of estimators.

  • If the expected value of the estimator equals the population parameter, the estimator is an unbiased estimator.
  • If the expected value of the estimator does not equal the population parameter, it is a biased estimator.
  • If the expected value of the estimator approaches the population value as the sample size increases, it is an asymptotically unbiased estimator.

Related

Synonyms:
Biased estimator, Unbiased estimator
Related Articles:
  • How to Interpret P-values and Coefficients in Regression Analysis
  • How Hypothesis Tests Work: Significance Levels (Alpha) and P values
  • How To Interpret R-squared in Regression Analysis
  • Interpreting P values
  • How to Identify the Distribution of Your Data

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