Statistical tools
A/B test calculators and utilities for data analysis, statistical tests, and significance calculation.
Sample Size Calculator
Calculate the required sample size
- 🔢 Sample size determination
- 📊 Flexible calculator
- 📈 Save results
Chi-Square Test
Perform a statistical chi-square test
- 📊 Statistical analysis
- 🔢 AB test result analysis
- 📈 Save results
Two-Sample T-Test
Compare the means of two samples
- 📊 Mean comparison
- 📈 Statistical testing
- 📉 Save results
Sample Ratio Mismatch Calculator
Calculate SRM (Sample Ratio Mismatch) for A/B testing
- 📊 Statistical analysis
- 🔢 Ratio comparison
- 📈 SRM detection
Sequential Sampling Calculator
Calculate Sample Size for Sequential Testing in A/B Tests
- 📊 Statistical analysis
- 🔢 Speed up hypothesis testing
- 📈 Sequential testing
Random Number Generator
Generate random numbers from a range or custom list
- 🔢 Random number generation
- 📊 Work with ranges and lists
- ✨ Exclude numbers