Statistical Calculators
Interactive browser-based calculators for your survey research.
| Number of Surveys – Sample 1 | |
| Observed % – Sample 1 (written as a number between 0 and 100; i.e., 70% = 70) | |
| Number of Surveys – Sample 2 | |
| Observed % – Sample 2 (written as a number between 0 and 100; i.e., 70% = 70) | |
| Confidence Interval ± | |
| Significance = |