Compare Survey Satisfaction for New and Established Users
Last updated: July 6, 2026
Quick Overview
The question asks the candidate to compare survey satisfaction scores between new and established users, utilizing SQL or Python for data manipulation and analysis.
Meta
July 6, 20265
0
94 solved
The question asks the candidate to compare survey satisfaction scores between new and established users, utilizing SQL or Python for data manipulation and analysis.
This question is typically asked during the technical screen for a Data Scientist role at Meta to evaluate the candidate's ability to manipulate and analyze data effectively. The interviewer is looking for proficiency in SQL or Python, understanding of data comparison techniques, and the ability to derive insights from user satisfaction data. This assessment helps determine how well the candidate can handle real-world data scenarios that are relevant to the company's user experience goals.
What the Interviewer Expects
- Demonstrate proficiency in SQL or Python for data manipulation.
- Explain the methodology for comparing satisfaction scores.
- Provide insights on potential factors influencing differences in scores.
- Discuss data visualization techniques to present findings.
- Consider the implications of the results for business strategy.
Key Topics to Cover
How to Approach This
- Clarify the schema and expected output format before writing queries.
- Use CTEs (WITH clauses) to break complex queries into readable steps.
- Consider window functions (ROW_NUMBER, RANK, LAG, LEAD) for ranking and sequential analysis.
- Watch for NULLs, duplicates, and edge cases in JOINs and GROUP BY.
- For pandas, prefer vectorized operations over row-by-row iteration.
Possible Follow-up Questions
- What specific SQL queries would you use to extract this data?
- How would you handle missing or incomplete survey responses?
- Can you suggest any additional metrics to analyze user satisfaction?
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Practice SQL ProblemsSample Answer
Approach
To compare survey satisfaction scores between new and established users, I would first define the criteria for 'new' and 'established' users. Typically, new users might be defined as those who have si...
Data Manipulation
Using SQL, I would write a query to select the satisfaction scores grouped by user type. Here is a sample SQL query:
SELECT user_type, AVG(satisfaction_score) AS average_score
FROM survey_resp...