Higher price: conversion down, revenue per visitor up, neither significant. Decide.
Decide from resultsHardProblem. A prototype billing product for AI companies is testing two monthly prices on its signup page: $20 and $30. After 3,000 visitors, the $30 arm has lower conversion to a paid plan (p = 0.14) and higher first-month revenue per visitor (p = 0.11). The team needs to pick a price to launch the beta with. What do you recommend?
Before you reveal: say your answer out loud, as if you were in the real interview — get your reasoning across clearly first. There is no single correct answer: reading what the interviewer is really after and defending your own thinking is what makes an answer strong.