Student's t-test Calculator
The Student's t-test is a statistical tool used to determine if there's a significant difference between the means of two groups. Researchers, students, and analysts use it in hypothesis testing across various fields like psychology, medicine, and social sciences. Our calculator simplifies this complex statistical process, providing quick t-value and p-value results without manual calculations.
Calculator
| Group 1 | Group 2 |
|---|---|
Formula
t = (M₁ - M₂) / √((s₁²/n₁) + (s₂²/n₂))
Where M = mean, s = standard deviation, n = sample size
How to Use
1. Enter mean values for both groups
2. Input standard deviations
3. Add sample sizes
4. Click Calculate
The calculator will show t-value, degrees of freedom, and p-value. Use these results to determine statistical significance (typically p < 0.05 indicates significant difference).
Development Process
1. Designed UI layout with input fields
2. Implemented t-test formula in JavaScript
3. Added result display functionality
4. Integrated input validation
5. Conducted testing with known values
6. Optimized for user experience
7. Added documentation and FAQs