How do I approach Analytics & Experimentation interview questions?

Analytics & Experimentation questions require understanding of core concepts and practice. PracHub provides solutions with explanations to help you master analytics & experimentation interviews.

What difficulty level is this interview question?

This is a medium difficulty Analytics & Experimentation question, commonly asked during Technical Screen rounds at Coinbase.

What role is this question designed for?

This question is commonly asked for Data Scientist candidates at Coinbase during technical interviews.

Investigate Super Bowl Ad Impact on User Sign-Ups and Revenue

Quick Overview

This question evaluates proficiency in attribution and funnel estimation, cohort analysis, revenue decomposition, instrumentation, and diagnostic analytics to quantify campaign-driven sign-ups from a tracked QR experience and to explain a month-over-month retail revenue decline.

Estimating QR-Driven Sign-ups and Diagnosing a 20% MoM Retail Revenue Decline

Scenario

A crypto company runs a Super Bowl commercial featuring a QR code that awards a $15 coupon upon sign-up. After the campaign, the PM reports that retail revenue has fallen 20% month-over-month (MoM).

Task

Estimate the number of users who will complete sign-up after scanning the Super Bowl ad's QR code.
Retail revenue is down 20% MoM. Investigate likely drivers, outline the analyses you would run next, and explain how you would use cohort analysis to understand the impact across user groups.

Assumptions (minimal, explicit)

The QR code points to a unique, trackable URL with UTM parameters and server-side logging to measure scans/visits.
The ad aired nationally during the Super Bowl with high concurrent traffic and a short QR on-screen window.
Sign-up requires KYC; the coupon is delivered upon successful sign-up or after first funding (specify in instrumentation).
Retail revenue is primarily driven by trading fees (take rate × trading volume), with possible contributions from other products (e.g., staking, subscriptions).

Quick Overview

Assumptions (minimal, explicit)

The QR code points to a unique, trackable URL with UTM parameters and server-side logging to measure scans/visits.

The ad aired nationally during the Super Bowl with high concurrent traffic and a short QR on-screen window.

Sign-up requires KYC; the coupon is delivered upon successful sign-up or after first funding (specify in instrumentation).

Retail revenue is primarily driven by trading fees (take rate × trading volume), with possible contributions from other products (e.g., staking, subscriptions).

Investigate Super Bowl Ad Impact on User Sign-Ups and Revenue

Quick Overview

Estimating QR-Driven Sign-ups and Diagnosing a 20% MoM Retail Revenue Decline

Scenario

Task

Assumptions (minimal, explicit)

Solution

Submit Your Answer

Investigate Super Bowl Ad Impact on User Sign-Ups and Revenue

Quick Overview

Estimating QR-Driven Sign-ups and Diagnosing a 20% MoM Retail Revenue Decline

Scenario

Task

Assumptions (minimal, explicit)

Solution

Submit Your Answer