Uplift

multiple choice

A 50/50 split that came out 52/48

Experimentation & A/B Testing · Data Quality · medium · Company-context scenario · 6 min

You designed a 50/50 experiment. With ~2 million users per arm you observe a 52/48 split; a chi-square test gives p < 0.001. What should you conclude?

Evaluation criteria

  • Picks the option the reasoning in the prompt supports

Detailed grading feedback appears after you submit.

Source

Company-context scenario built from real product constraints. It is not represented as a verbatim interview question.

Your answer

Options

You get one graded attempt here without an account. Create a free account for unlimited attempts, saved progress and community write-ups.

Answers stay hidden until you ask. Reveal the full model write-up when you are ready to compare.

Community

How other people solved this

There is rarely one right query or one right framing. Read how others approached it, and share your own once you have submitted an answer.

Reading is open to everyone. Sign in to share your approach or mark a write-up as helpful.

Loading write-ups…