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Research Sample Planner

About the Planner

The sample planner is designed to help you determine the sample size you will need for a quantitative study.

Choose the level of confidence you require in the results, either 95% (a 1 in 20 chance of the results falling outside the given range), or 99% (a 1 in 100 chance).

Enter the sample size you want to use.

Or enter the size of subsample for which you want to measure the accuracy of the result (as a percentage of the total sample).

Click on the appropriate update button to calculate the sample size or the accuracy.

Confidence level required  
   Sample size    
   Percentage subsample  
     Accuracy +/- of subsample    

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