Advanced Confidence Interval Calculator
How to Use:
- Select whether you want to calculate a Confidence Interval for a Mean or a Proportion.
- Enter the required sample data and select your desired Confidence Level.
- Click "Calculate Confidence Interval".
- The Point Estimate, Margin of Error, and the Lower and Upper Bounds of the Confidence Interval will be displayed.
- Click "Show Details" for a breakdown of the formulas, theory, and step-by-step calculations.
- Use "Clear All" to reset the form.
Enter sample standard deviation (s). If population σ is known, enter it.