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Confidence Interval Calculator

Sample Mean (x̄)

Sample Size (n)

Standard Deviation (σ)

Confidence Level

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Margin of Error (±)

1.96

Lower Bound48.04

Upper Bound51.96

Standard Error1

Z-Score Used1.96

Interval Width3.92

InterpretationWe are 95% confident that the true population mean lies between 48.04 and 51.96