Comparing responses to two offers
A fictional store randomly shows comparable prospective customers one of two otherwise identical offers. Offer A receives 12 purchases from 100 visitors; Offer B receives 18 from 100. Which conclusion is most defensible from these counts alone?
A
Offer B guarantees a purchase from every future visitor.
B
Offer A had the higher purchase rate because 12 is smaller than 18.
C
The test directly measures each customer’s lifetime spending.
D
Offer B had a higher observed purchase rate, but more analysis or evidence is needed before assuming a stable difference.
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