How do you handle the effect of multiple variables while A/B testing
Senior Business Data Analyst Interview Questions
43 senior business data analyst interview questions shared by candidates
How do you ensure the quality of the data?
1. SQL - Joins, Case statements, Window Functions etc. 2. Experience related questions (project management, meeting deadlines, difficult situations faced at work and how you overcame them etc.)
Questions during interview: 1- Say you do on-line ads for two different companies, EasyJet and Mercedes. How would you present your results to the board and prove them you did not waste any money? 2- Another question that involves some economic thinking about why profits go down etc. in the on-line ad business. I recommend you review concepts such as Click-Through Rate, Conversion Rate and the auction mechanisms in on-line marketing etc. 3- After Facebook users pass away, their profile pages remain. So today we have some dead users and some users that are still alive. Will the number of dead people ever equal that of the ones that are alive? When will that happen? How would you calculate it?
How to you read the balance sheet?
It was mostly related to my past experience and role related questions. I had an interview with a onsite PM who calls herself Director but is absolutely rubbish asking silly questions and she did not have any understanding of the project.
difference between bagging and boosting.
Tell me about a time when you had to manage multiple tasks and project with limited and not enough resources and time constraints.
behavioral question, SQL cases, and past project experience relating to SQL
Describe your experience with SQL/SAS. Can you explain what a left join is?
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