Stratified and Simple Random Sampling

Enter Unit-level design prevalence (Inputs in percent decimal) Enter Cluster-level prevalence (Inputs in percent decimal) Enter Test Sensitivity (Inputs in percent decimal. eg: 90%=0.9) Enter Target Cluster Sensitivity (Inputs in percent decimal eg: 90%=0.9) Enter Specificity (Inputs in percent decimal eg: 90%=0.9) Enter Target System Sensitivity [Confidence] (Inputs in percent decimal eg: 90%=0.9)

0.80 0.90 0.95 0.99

Total Number of Villages/Clusters/Farms Required Total Number of Samples Required
Sampling Method
Stratified Random Sampling

Simple Random Sampling

Select Column name for Stratification
Enter Minimum No of Selected Population Per Village

Select CSV File
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Numbers of units to be sampled for different cluster sizes

Cluster Size Number of units to sample Cluster Size Number of units to sample

10															200
20															500
30															1000
40															5000
50															10000
100