Confidence intervals

Confidence intervals are a range of values, derived from the statistical analysis of data, that are believed to encompass the true value of an unknown parameter with a specified level of confidence, typically expressed in percentage terms (like 95% confidence interval). They provide an estimated range of values which is likely to include the parameter of interest and are fundamental in hypothesis testing and regression analysis. For instance, in battery performance studies, a confidence interval can indicate the reliability of the estimated average battery life.

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