Confidence interval
A confidence interval is a range of values that is likely to contain an unknown population parameter. If you draw a random sample many times, a certain percentage of the confidence intervals will contain the population mean. This percentage is the confidence level.
![](https://Datama-solutions.github.io//docs/core_app/impact/web_application/menu/settings/use_cases_examples/images/ConfidenceIntervall-Concept.jpg)
By changing the confidence interval you can modify the precision expected from the significance.