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Conversion rate dropped and nobody knows why

Il tasso di conversione è crollato ma nessuno sa perché · Data Analysis · Beginner

The case

Site conversion rate went from 3.2% to 1.9% in a week, a 40% drop. Marketing blames product, product blames marketing. Traffic is stable at about 50,000 visits. They want an analysis by end of day. You haven't looked at anything beyond the aggregate number. How do you set up the diagnosis to tell whether it's a real problem, a tracking error, or a shift in traffic mix?

Il tasso di conversione del sito è passato dal 3,2% all'1,9% in una settimana, un calo del 40%. Il marketing dà la colpa al prodotto, il prodotto al marketing. Il traffico è stabile a circa 50.000 visite. Ti chiedono un'analisi entro fine giornata. Non hai ancora guardato nulla oltre al numero aggregato. Come imposti la diagnosi per capire se è un problema reale, un errore di tracciamento o un cambio di mix del traffico?

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Frequently asked questions

What is the "Conversion rate dropped and nobody knows why" problem-solving case on Grace?

It is a beginner-level Data Analysis case based on a real workplace situation. You read the problem, write how you would solve it in free text, and Grace's AI judges whether your solution actually works — or what is still uncovered.

How is my solution evaluated?

Grace's AI checks four things: whether you address the core problem (not just the symptoms), whether your plan is feasible within the constraints of the case, whether you consider risks and consequences, and whether you avoid the typical mistakes. You get a solved/not-solved verdict, a 0-100 score and coaching feedback.

Is there one correct answer to "Conversion rate dropped and nobody knows why"?

No. Grace judges the substance of your reasoning, not similarity to a script. Different approaches pass, as long as they genuinely solve the problem within the constraints described in the case.

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