Sample Size Calculator
Determine the right sample size for statistically significant customer research with confidence levels and margin of error calculations.
๐ Small Sample Statistics Calculator
Calculate reliable statistics, confidence intervals, and effect sizes for small sample sizes using specialized statistical methods
Statistical Method Selection
๐ Descriptive Statistics
Basic statistics with small sample corrections including bias-corrected variance and robust measures
๐ Confidence Intervals
Robust confidence intervals using t-distribution and bootstrap methods for small samples
๐ฌ Hypothesis Testing
One-sample and two-sample tests optimized for small sample sizes with exact p-values
๐ Proportion Analysis
Analyze proportions and rates with exact confidence intervals and small sample corrections
๐ Effect Size Analysis
Calculate and interpret effect sizes with bias corrections for small samples
โก Power Analysis
Determine required sample sizes and power for detecting meaningful effects