Expandtree Inc is an innovative technology company specializing in data-driven solutions to optimize business operations and enhance decision-making processes. Known for its dynamic and forward-thinking approach, Expandtree Inc has carved out a significant presence in the tech industry.

Stepping into the role of a Business Analyst at Expandtree Inc requires a blend of technical prowess and analytical acumen. This position demands skills in data analysis, problem-solving, and strategic planning. As a Business Analyst, you will work closely with various teams to translate data insights into actionable business strategies.

If you're considering joining Expandtree Inc and advancing in the tech industry, this guide is for you. Here, we outline the interview process, commonly asked Business Analyst interview questions, and tips to excel. Let’s get started on your journey with Interview Query!

Submitting Your Application

The first step to joining Expandtree Inc as a Business Analyst involves submitting a compelling application that highlights your technical skills and keen interest in the role. Whether you’ve been contacted by a recruiter or have taken the initiative yourself, carefully review the job description and align your CV with the required skills and experiences.

Tailor your CV by identifying specific keywords that the hiring manager might seek and crafting a targeted cover letter. Make sure to highlight relevant skills and elaborate on your work experiences that align with the role.

Recruiter/Hiring Manager Call Screening

If your CV makes it to the shortlist, a recruiter from the Expandtree Talent Acquisition Team will reach out to verify key details about your experiences and skill set. Behavioral questions might also be part of the initial screening process.

In some instances, the Expandtree Business Analyst hiring manager might join the screening call to answer any queries you have about the role and the company. They may also engage in preliminary technical and behavioral discussions.

The entire recruiter call typically lasts about 30 minutes.

Technical Virtual Interview

Successfully clearing the recruiter round advances you to the technical screening stage. The technical screening for the Business Analyst role at Expandtree Inc is usually done virtually, via video conferencing and screen sharing. This 1-hour interview may cover topics related to Expandtree’s data systems, ETL pipelines, database management, and SQL queries.

Incorporation of take-home assignments related to product metrics, data visualization, and analytics can be expected, especially for Business Analyst roles. Additionally, your proficiency in hypothesis testing, probability distributions, and machine learning fundamentals may be evaluated.

Depending on the seniority of the position, you may also be given case studies or real-world scenario problems to solve.

Onsite Interview Rounds

Following a second call from the recruiter outlining the next stage, you’ll be invited to attend the onsite interview loop. During your onsite interview at Expandtree’s office, multiple interview rounds will be conducted, varying according to the role. Your technical acumen, including programming and data modeling abilities, will be assessed against other finalists throughout the interview process.

If you were given take-home exercises, you may also be required to present your findings during one of the onsite interview rounds.

Quick Tips For Expandtree Business Analyst Interviews

• Deep Understanding of Business and Data Analysis: Make sure you have a thorough understanding of business analytics, KPIs, and how to derive actionable insights from data. Expandtree will test not just your technical skills but your ability to influence business decisions through data.
• Enhanced SQL Skills: Be prepared to write and optimize complex SQL queries. The technical rounds at Expandtree often include SQL-based questions to evaluate your database management skills.
• Presentation and Communication Skills: The ability to communicate your findings clearly and concisely is crucial for a Business Analyst role. Practice presenting data insights and make sure you can articulate the impact of your analysis on business strategies.

Typically, interviews at Expandtree Inc vary by role and team, but commonly Business Analyst interviews follow a fairly standardized process across these question topics.

• Write a SQL query to select the 2nd highest salary in the engineering department. Write a SQL query to select the 2nd highest salary in the engineering department. If more than one person shares the highest salary, the query should select the next highest salary.

• Write a function to merge two sorted lists into one sorted list. Given two sorted lists, write a function to merge them into one sorted list. Bonus: Determine the time complexity.

• Create a function missing_number to find the missing number in an array. You have an array of integers, nums of length n spanning 0 to n with one missing. Write a function missing_number that returns the missing number in the array. Complexity of (O(n)) required.

• Develop a function precision_recall to calculate precision and recall metrics. Given a 2-D matrix P of predicted values and actual values, write a function precision_recall to calculate precision and recall metrics. Return the ordered pair (precision, recall).

• Write a function to search for a target value in a rotated sorted array. Suppose an array sorted in ascending order is rotated at some pivot unknown to you beforehand. You are given a target value to search. If the value is in the array, return its index; otherwise, return -1. Bonus: Your algorithm's runtime complexity should be in the order of (O(\log n)).

• Would you suspect anything unusual about the A/B test results with 20 variants? Your manager ran an A/B test with 20 different variants and found one significant result. Would you consider this result suspicious?

• How would you set up an A/B test to optimize button color and position for higher click-through rates? A team wants to A/B test changes in a sign-up funnel, such as changing a button from red to blue and/or moving it from the top to the bottom of the page. How would you design this test?

• What steps would you take if friend requests on Facebook are down 10%? A product manager at Facebook reports a 10% decrease in friend requests. What actions would you take to investigate and address this issue?

• Why might job applications be decreasing while job postings remain constant? You observe that the number of job postings per day has remained stable, but the number of applicants has been decreasing. What could be causing this trend?

• What are the drawbacks of the given student test score datasets, and how would you reformat them for better analysis? You have data on student test scores in two different layouts. What are the drawbacks of these formats, and what changes would you make to improve their usefulness for analysis? Additionally, describe common issues in "messy" datasets.

• Is this a fair coin? You flip a coin 10 times, and it comes up tails 8 times and heads twice. Determine if the coin is fair based on this outcome.

• Write a function to calculate sample variance from a list of integers. Create a function that takes a list of integers and returns the sample variance, rounded to 2 decimal places. Example input: test_list = [6, 7, 3, 9, 10, 15]. Example output: get_variance(test_list) -> 13.89.

• Is there anything suspicious about the A/B test results with 20 variants? Your manager ran an A/B test with 20 different variants and found one significant result. Evaluate if there is anything suspicious about these results.

• How to find the median in a list where over 50% of elements are the same? Given a sorted list of integers where more than 50% of the list is the same integer, write a function to return the median value in (O(1)) computational time and space. Example input: li = [1,2,2]. Example output: median(li) -> 2.

• What are the drawbacks of the given student test score data layouts? You have student test scores in two different layouts. Identify the drawbacks of these layouts, suggest formatting changes for better analysis, and describe common problems in "messy" datasets.

• How would you evaluate the suitability and performance of a decision tree model for predicting loan repayment? You are tasked with building a decision tree model to predict if a borrower will repay a personal loan. How would you evaluate whether a decision tree is the correct model for this problem? If you proceed with the decision tree, how would you evaluate its performance before and after deployment?

• How does random forest generate the forest, and why use it over logistic regression? Explain the process by which a random forest generates its forest. Additionally, discuss why one might choose random forest over other algorithms such as logistic regression.

• When would you use a bagging algorithm versus a boosting algorithm? You are comparing two machine learning algorithms. In which scenarios would you use a bagging algorithm versus a boosting algorithm? Provide examples of the tradeoffs between the two.

• How would you justify using a neural network model and explain its predictions to non-technical stakeholders? Your manager asks you to build a neural network model to solve a business problem. How would you justify the complexity of this model and explain its predictions to non-technical stakeholders?

• What metrics would you use to track the accuracy and validity of a spam classifier? You are tasked with building a spam classifier for emails and have completed a V1 of the model. What metrics would you use to track the accuracy and validity of the model?

What is the average salary for a Business Analyst at Expandtree Inc?

Q: What does the Business Analyst position at Expandtree Inc entail?

A: The Business Analyst position at Expandtree Inc involves identifying business needs and proposing solutions that deliver value to stakeholders. This includes data analysis, report generation, and working closely with other departments to streamline processes.

Q: What is the interview process for the Business Analyst position at Expandtree Inc?

A: The interview process typically includes an initial phone screen, followed by one or more technical rounds where your analytical and problem-solving skills will be evaluated. The final stage usually involves a cultural fit interview with team members or executives.

Q: What technical skills are required for a Business Analyst at Expandtree Inc?

A: You should have a strong grasp of data analysis tools such as SQL, Excel, and possibly Python or R. Familiarity with business intelligence platforms and experience in data visualization are also highly valued.

Q: What is the company culture like at Expandtree Inc?

A: Expandtree Inc has a dynamic and collaborative culture that values innovation, integrity, and a data-driven mindset. The company encourages continuous learning and offers opportunities for personal and professional growth.

Q: How can I best prepare for an interview at Expandtree Inc?

A: To prepare effectively, research the company, its products, and industry trends. Practice common interview questions using Interview Query and review the key technical skills required for the role. Be prepared to discuss your past experiences and how they align with the responsibilities of the position.

Embarking on a career journey with Expandtree Inc. as a Business Analyst is an exciting opportunity where you can thrive in a dynamic and innovative environment. If you want more insights about the company, check out our Expandtree Inc. Interview Guide, where we have covered many interview questions that could be asked. We’ve also created interview guides for other roles, such as financial analyst and project manager, where you can learn more about Expandtree Inc.’s interview process for different positions.

At Interview Query, we empower you to unlock your interview prowess with a comprehensive toolkit, equipping you with the knowledge, confidence, and strategic guidance to conquer every Expandtree Inc. interview question and challenge.

You can check out all our company interview guides for better preparation, and if you have any questions, don’t hesitate to reach out to us.

Good luck with your interview!