# Statistical Analysis, Tests, and Distribution Tools

Summarize numeric data, measure spread, compare groups, calculate probability and confidence, and model relationships with focused statistics tools.

> Canonical page: https://elysiatools.com/en/hubs/statistical-analysis-tools

- **Keywords:** statistical analysis, descriptive statistics, hypothesis testing, confidence interval, regression analysis

## Frequently asked questions

### Should I report mean or median?

Report both when the distribution may be skewed. The mean reflects the arithmetic balance point, while the median is more resistant to outliers.

### Is a small p-value the same as a large effect?

No. A small p-value says the result is unlikely under the null model; it does not prove the effect is large, important, or causal.

### When should I use ANOVA instead of a t-test?

Use a t-test for a focused comparison between two groups. Use ANOVA when comparing means across three or more groups under a shared model.

## Related content

- [Measurement and Unit Conversion Tools](https://elysiatools.com/en/hubs/measurement-unit-converters): Convert length, weight, temperature, speed, pressure, energy, force, density, area, volume, angle, and time units from one focused workflow.
- [CSV Cleanup, Reshaping, and Delivery Workflow](https://elysiatools.com/en/hubs/csv-utility): Inspect CSV structure, keep the right columns, reshape rows, compare outputs, and split final files for dependable imports or reporting.