A/B testing duration calculator
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A/B Testing Duration Calculator
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How to use it?Fill the cells with red background; rest of the cells will update automatically
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Make a copy of this sheet so that you can edit it
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Existing Conversion Rate20%Number of VisitorsNumber of Days
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Expected Improvement in Conversion Rate30%80% chance of finding a difference213321
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Number of Variations in Test395% chance of finding a difference346735
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Average number of daily visitors100
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