Ernst & Young (EY) interview experience Real time questions & tips from candidates to crack your interview
Data Scientist
Ernst & Young (EY)
2 rounds | 11 Coding
problems
Selected Interview preparation journey
Preparation
Duration: 2 Months
Topics: Machine Learning, Python, SQL, Deep Learning, NLP, Data Visualization
Tip 1 : Focous on Basics(be strong with Math)
Tip 2 : Communication Skill
Application process
Where: Referral
Eligibility: Should Past work on Data Science or some projects/ Hackathons
Tip 1 : Atleast 1 or 2 projects on Machine Learning
Tip 2 : Should be good in Python Programming
Interview rounds
01
Round
Hard
Telephonic
Duration55 minutes
Interview date18 Jul 2021
Coding problem10
My interview was on sunday , it was over Microsoft TEAMS. Interview experience was very good she is try to understand my point of view to solving the problems.
1. Technical Question
Time Series forecasting based problem
They asked me about different statistical test of time timer series(adfuller test and kpss test)
Problem approach
Tip 1 : One way to test whether a time series is stationary is to perform an augmented Dickey-Fuller test
2. ML Question
What is difference between Random forest and XGboost
3. ML Question
Assumptions of Linear regression
4. ML Question
Difference between R squad and adjusted R squad
5. Python Question
Difference between list and tuple
6. Python Question
how to set enviroment in Python
7. Deep Learning Question
input and output gate in LSTM
8. Deep Learning Question
Why LSTM required
9. Deep Learning Question
Different types of encoder
10. ML Question
Difference between Correlation and co-variance
02
Round
Easy
Video Call
Duration45 minutes
Interview date24 Jul 2021
Coding problem1
1. Technical Question
time series based test adfullar test
Problem approach
step 1. explain importance of this test(after getting the data we have to check is this data is suitable for time series or not.
step 2. Mathematical logic behind this
step 3. use statsmodel to calculate this test.
Here's your problem of the day 
Solving this problem will increase your chance to get selected in this company
Skill covered: Programming
How do you remove whitespace from the start of a string?
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