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Sr Data Analyst Interview Questions
3,099 sr data analyst interview questions shared by candidates
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Have you ever worked with Cognitiv or our products before? If so when have you used it and how did you hear about it.
Can you repeat that I uh wasn’t paying attention
The first step is an hour home test built with two sections. the first is a 40 minutes SQL test with 4 different questions. joins, aggregations, window functions, indexing. Later a 20 min business test with two assignments, in the first you need to record a video of yourself answering how can you predict a purchase of an iPhone based on the data you are given. And in the second you need to do a sanity check to a data table you are given, for example, the categories were not consistent during all months. The second stage is a Zoom interview where you are given a problem in python to solve, mine was transforming keys and values of a dictionary and avoid duplications during this transformation. later a question regarding how to solve it in SQL. The last stage is a 3 hour home test in SQL with research and business thinking.
SQL interview testing your understanding of table structures and joins. DS presentation showcasing a previous project that you’ve worked on.
How do you know what statistical techniques to apply?
Director of Business: What would you do with our data? VP Bi: What is a p value in statistics?
How do you communicate to non-technical stakeholders?
1. Any situation where I had to work with multiple stakeholders.
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