## Confidence Interval Calculator:

To use the **Confidence Interval Calculator** plugin, follow these steps:

**Enter the Sample Mean**: Input the average value of your sample data.**Enter the Sample Standard Deviation**: Input the standard deviation value, which represents the variability of your sample data.**Enter the Sample Size**: Specify the number of items in your sample. This should be a whole number greater than zero.**Enter the Confidence Level**: Choose your confidence level as a percentage (e.g., 90, 95, or 99). This represents how confident you are in the interval estimation.**Calculate**: Click the**“Calculate Confidence Interval”**button. The calculator will display:**Lower Bound**: The lowest value in the confidence interval.**Upper Bound**: The highest value in the confidence interval.**Margin of Error**: The range of values above and below the sample mean within which the true population mean is expected to fall.

**Reset**: Click the**“Reset”**button to clear all fields and results to start a new calculation.