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Confidence Interval

What is Confidence Interval

A confidence interval represents the probable range within which the true value for an entire population lies. Essentially, it’s a span of values that most likely includes the target statistic you’re trying to estimate. This concept is intimately linked to the idea of margin of error.

Synonyms: Precision interval

glossary bee

Why is Confidence Interval Important?

  • Certainty Range: Confidence intervals offer a range of values that likely include the true population parameter, providing a measure of certainty in statistical estimation.
  • Uncertainty Quantification: They quantify variability and potential estimation errors in sample data, helping researchers interpret results more cautiously.
  • Comparison and Inference: Confidence intervals enable comparison between groups and inference about population parameters, guiding decision-making processes.


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