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Sample Size Question

Question asked by fa0ef9e768d7877d69c5b52ddd864d0ce503baa0 on Jan 12, 2017
Latest reply on Jan 12, 2017 by josh.hill

Hi there!


I'd love to better understand if the approach i'm taking to find out our sample size for a/b testing is correct. Any insights are much appreciated!


I've plugged in the following numbers in sample size calculator:


Confidence level = 95%

Confidence Interval = 5

Population = 17K

Sample size = 376


I then divided 376/ 17, 000 = 22%

I doubled that number to make up my sample size, which equals 44%.


So, my test group was 44% and then the winner to 56%