“Is the gap real — or just random noise?
 

Drop two numbers, smash the button, and get instant proof.”

(Seriously, it takes less time than brewing a café cortado)

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Try these mini-scenarios:

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Chocolate lovers:     

• Women             n = 150        52%

• Men                   n = 175        47%   

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Feature adoption:

• Early adopters  n = 350       25%

• Mainstream       n = 500       44%

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Email CTR A/B test:

• Version A          n = 100        12%

• Version B          n = 1000      10%

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