Metrics question
The mobile version of Housing leads conversion has dropped by 3% over the past 2 weeks. How would you analyze the reduction?
- Housing.com
- Metrics
- Medium
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What this question tests
Root-cause diagnosis of a funnel-conversion decline localized to a specific platform, requiring segmentation before proposing a fix.
How to approach it
- Confirm the drop is real and isolated to mobile web specifically, ruling out a tracking or attribution change on that platform.
- Segment by funnel step, search, listing view, lead-form submission, to identify exactly where the drop is concentrated within the conversion path.
- Check for a recent mobile-specific change: a redesign, a new ad unit slowing load time, or a broken form field on certain devices/browsers.
- Segment by device type and browser to catch a compatibility bug affecting a specific subset of mobile users, not the whole mobile base.
- Based on the localized cause, propose next steps: a targeted bug fix if technical, or a UX test if the drop follows a recent design change.
What a strong answer includes
- Segments the funnel step by step rather than treating 'conversion' as one monolithic number.
- Explicitly checks for a technical/compatibility bug affecting only a device subset, a common real cause of platform-specific drops.
- Ties the investigation to the timing of a specific recent change on mobile web.
Common mistakes
- Proposing broad UX redesign ideas before localizing exactly where in the funnel the drop occurs.
- Ignoring the possibility of a technical bug specific to certain devices or browsers, a common cause of platform-isolated drops.
Likely follow-up questions
- How would you distinguish a tracking bug from a genuine user-behavior drop?
- What would you check first if the drop turned out to be isolated to one browser?
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More questions from Housing.com
Learn the skill behind it
Chapters of the AI PM course that teach what this question tests.
- Chapter 9: Prove it paid off: outcomes, economics, and pricing
- Chapter 2: Data fluency: SQL, logs, and reading the truth yourself
- Chapter 14: Get the job: the AI PM interview loop