Epi Hub

WHO/CDC standard tools for epidemiological analysis & surveillance

StatCalc

Epi Info StatCalc equivalent - Sample size, 2×2 analysis and matched-pair testing

Sample Size for Frequency (Proportion)

Expected Frequency: 50%

Confidence Interval Width: +/-5.0%

Confidence Level

Population Size

SRS Sample

385

FPC-Adjusted

371

Recommendations

Sample size: 371 (FPC-adjusted)

Info

Without FPC: 385. For population 10,000, precision +/-5%.