Instructions: To calculate the number of samples you'll need to verify, enter the percent confidence desired in the first blue cell. Then enter the defect rate in the next cell. The total number of samples needed is shown in the green box.

Instructions: To calculate the defect rate of your product, enter the percent confidence in the first blue cell, then enter the number of samples you'll be testing in the next blue cell. The defect rate will be shown in the green box.