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Connectedx Inc. Interview Questions

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Let’s say that your company is running a standard control and variant AB test on a feature to increase conversion rates on the landing page. The PM checks the results and finds a .04 p-value.

How would you assess the validity of the result?

Experiment Validity

You are testing hundreds of hypotheses with many t-tests. What considerations should be made?

What is a key disadvantage of the F-test when compared to multiple t-tests?

What is a key disadvantage of the F-test when compared to multiple t-tests?

Hundreds of Hypotheses

You are testing hundreds of hypotheses with many t-tests. What considerations should be made?

Let’s say you work for a social media company that has just done a launch in a new city. Looking at weekly metrics, you see a slow decrease in the average number of comments per user from January to March in this city.

The company has been consistently growing new users in the city from January to March.

What are some reasons why the average number of comments per user would be decreasing and what metrics would you look into?

What metric could be used to measure if active users are still engaging on the platform despite an overall decrease in the average number of comments per user?

What metric could be used to measure if active users are still engaging on the platform despite an overall decrease in the average number of comments per user?

Decreasing Comments

How would you investigate a decline in the average number of comments per user?

Connectedx Inc. Salaries by Position

Role: Data Scientist Location: Plano, TX (Hybrid) Duration: 12+ Months Contract What you bring: Strong experience manipulating data set and building statistical models, has master’s or Ph.D. in statistics, mathematics with focus on ML, NLP, machine learning or another quantitative field. Strong Knowledge and experience in statistical and data mining techniques – GLM/regression, Random Forest, Boosting, text and data mining. Experience querying database and using statistical computer languages : R , Python, SQL etc. Experience creating and using advanced machine learning algorithms and statistics: regression, simulation, scenario analysis, modeling, clustering, decision trees, neural networks, etc. Experience with distributed data/computing tools: Map/Reduce, Hadoop, Hive, Spark, , MySQL, etc. Experience visualizing/presenting data for stakeholders using: Tableau, Business Objects, D3, Exp with Prescriptive analysis, predictive analysis. Exp leveraging big data and search technologies (e.g., Spark, Elastic Search, Natural Language Processing, Web Crawling) . Knowledge of machine learning techniques and algorithms and be able to apply them in data driven natural language processing techniques. Ability to quickly prototype ideas / solutions and perform critical analysis and using creative approaches for solving complex problems. Exp with Automotive analytics a PLUS Excellent written and verbal communication skills What you will do: This role is a hands-on Data scientist to work very closely with business stakeholders helping to analyze the data and suggested patters and models to help them improve their business outcomes. Serve as lead data strategist to identify and integrate new datasets that can be leveraged through our product capabilities, and work closely with the engineering team in the development of data products. Execute analytical experiments to help solve problems across Automobile Domain Identify relevant data sources and sets to mine for client business needs and collect large structured and unstructured datasets and variables. Devise and utilize algorithms and models to mine big-data stores; perform data and error analysis to improve models; clean and validate data for uniformity and accuracy. Analyze data for trends and patterns and interpret data with clear objectives in mind. Implement analytical models in production by collaborating with software developers and machine-learning engineers. Work closely with business stakeholders, Software engineering team and data team to deliver the required outcomes.

Who we are:ConnectedX is focused on Digital Transformation and Product Engineering Services, enabling clients achieve their business, operating and technology needs for the digital age. Our unique industry-based, consultative approach helps clients implement digital transformation initiatives. Headquartered in Dallas, Texas, U.S. ConnectedX is a preferred partner for leading Fortune 1000 enterprises and is consistently admired by the clients and employees across the globe. Who we’re looking for:We are looking for a passionate and highly motivated Data Analysis for a Fortune 100 client. This is a long-term role in Plano, TX What you will do:Data Analysis - Perform analysis for large complex systems applying structured and repeatable data analysis techniques. Answer complex data questions over multiple large marketing data sets to deliver data-driven insights and recommendations to non-technical audiences, through clear visualizations and presentations. Identify, analyze, and interpret trends or patterns in complex data sets.Data Analysis Design and Documentation – Develop repeatable and organized processes for answering complex questions that can be utilized by others. This will include supporting data flow diagram and data documentation as well as visualization and presentation standards. Experience with data warehouse, data lake, and enterprise big data platforms in multi-data-center contexts required. Data Discovery and Support– Profiling and connecting new data sources to existing data sources to highlight opportunities to meet business and technology objectives. Troubleshoot and provide resolutions on issues related to data quality, reports, and databases. Stakeholder Engagement - Communicate and build relationships with the business and vendor partners. Work with external and internal teams to influence direction and achieve buy-in to solutions. Experience with Data Modelling, Data structures, data engineering, understanding on difference schema, experience validating data, transforming data .

Connectedx Inc. Interview Questions

Connectedx Inc. Interview Guides

Connectedx Inc. Interview Questions

Connectedx Inc. Salaries by Position

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