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Confidence Interval for a MeanStatLens

Choose a dataset:

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Sample mean (x): Sample SD (s): Sample size (n):

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Variable:

Confidence level

Confidence level % — or drag the critical values on the plot

Select a dataset or enter summary statistics — the interval appears automatically.

Testing a hypothesis? One-Sample t-Test →

Keyboard Shortcuts

Estimate a population mean with a confidence interval. Set the confidence level (or drag the critical values on the plot) and read the interval.

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