Instructions: To calculate the number of samples you’ll need to verify, enter the percent confidence desired in the first input box. Then enter the defect rate in the next input box. The total number of samples needed is shown in the results below.
Sample Number Calculator
Instructions: To calculate the defect rate of your product, enter the percent confidence in the first input box, then enter the number of samples you’ll be testing in the next input box. The defect rate will be shown in the results below.
Failure Rate Calculator
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