Confidence interval

According to frequentist inference, a confidence interval (CI) is a range of values which is likely to contain the true value of an unknown statistical parameter, such as a population mean. Rather than reporting a single point estimate, a confidence interval provides a range, such as 2 to 4 hours, along with a specified confidence level, typically 95%.

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Source: Wikipedia · Image: Wikimedia Commons · CC BY-SA 4.0

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