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Data Engineer Statistics & Experimentation Interview Questions

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Asked at DoorDash • 6 months ago
On DoorDash, there are missing item and wrong item issues for deliveries. How would you analyze each of them?
Data Engineer
Statistics & Experimentation
1 answer I was asked this
"Missing Item - User ordered multiple items, few items are missing Wrong Item - Entire order is wrong / there are items in the order that were never ordered How is this measured ? CSAT Missing Items Wrong Items Step 1 : Collect data on orders that reported missing / wrong items. Dive deep to understand if the problem is isolated to a specific metro/zip code/restaurant type (say fast food vs fine dine), time of day (lunch vs dinner), tenure of the courier on th"
Saurabh K. - "Missing Item - User ordered multiple items, few items are missing Wrong Item - Entire order is wrong / there are items in the order that were never ordered How is this measured ? CSAT Missing Items Wrong Items Step 1 : Collect data on orders that reported missing / wrong items. Dive deep to understand if the problem is isolated to a specific metro/zip code/restaurant type (say fast food vs fine dine), time of day (lunch vs dinner), tenure of the courier on th"See full answer
Data Engineer
Statistics & Experimentation
Asked at DoorDash • 2 months ago
You're a PM at a food delivery app where conversion rates have declined over the past week. How would you investigate the causes? (Conversion: From users browsing to placing orders.)
Data Engineer
Statistics & Experimentation
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Data Engineer
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