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Crescens Inc. Interview Questions

A/B Testing

Algorithms

Analytics

Machine Learning

Probability

Product Metrics

Python

Statistics

Crescens Inc. Interview Guides

Suppose there exists a new airline named Jetco that flies domestically across North America. Jetco recently had a study commissioned that tested the boarding time of every airline, and it came out that Jetco had the fastest average boarding times of any airline.

What factors could have biased this result, and what would you look into?

What could potentially bias the average boarding time in favor of an airline that only flies domestically?

What could potentially bias the average boarding time in favor of an airline that only flies domestically?

Boarding Times Bias

A new airline came out as the fastest average boarding times compared to other airlines.  What factors could have biased this result and what would you look into?

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?

Job Title: Lead Business AnalystLocation: Richmond, VADuration: 6+monthsType: Contract In Person Only100% Onsite Job Description:<ul><li>The Lead Business Analyst is a strategic and people-focused role responsible for elevating the quality, consistency, and impact of the Business Analyst team.</li><li>This position blends mentorship, analytical leadership, and cross-functional collaboration to ensure high-quality requirements, streamlined processes, and effective communication between business and technical stakeholders.</li><li>You will guide a talented team of 8-10 Business Analysts, shape BA standards and best practices, and help deliver enterprise-wide solutions that support organizational goals and improve operational efficiency.</li></ul> Key Responsibilities: Business Analysis Standards & Requirements <ul><li>Establish, promote, and maintain consistent BA practices, templates, and documentation standards.</li><li>Ensure high-quality business requirement artifacts (BRDs, RTMs, user stories, acceptance criteria, process flows, data requirements).</li><li>Oversee requirement validation to ensure both business and technical needs are fully addressed.</li><li>Review and provide constructive feedback on BA deliverables to reduce rework and strengthen solution quality.</li><li>Ensure timely and complete delivery of BA artifacts to support project timelines and milestones.</li><li>Promote testing approaches that address functional, non-functional, and data requirements.</li></ul> Collaboration, Facilitation & Stakeholder Alignment<ul><li>Foster strong collaboration across business units, IT teams, vendors, and stakeholders.</li><li>Act as a liaison between business and technical teams to ensure clarity, alignment, and shared understanding of business needs.</li><li>Facilitate workshops, requirement sessions, and cross-team discussions to drive decision-making.</li><li>Support change management efforts through consistent and proactive stakeholder communication.</li><li>Work with product owners, project managers, and leadership to prioritize requirements, mitigate risks, and maintain project momentum.</li></ul> Communication & Presentation <ul><li>Demonstrate exceptional written and verbal communication skills.</li><li>Translate complex business needs into clear, concise, and actionable requirements and documentation.</li><li>Tailor communication for executives, technical teams, and end users to ensure shared understanding.</li><li>Present findings, recommendations, and project updates to senior leadership with clarity and confidence.</li><li>Produce high-quality documentation that is accurate, structured, and easy to understand.</li></ul> Team Leadership, Coaching & Continuous Improvement<ul><li>Mentor, guide, and support Business Analysts, promoting skill development, confidence, and analytical excellence.</li><li>Identify improvement opportunities through process analysis, team feedback, and project outcomes.</li><li>Recommend and help implement improvements to BA practices to increase efficiency and consistency.</li><li>Ensure alignment with leadership and team members before introducing new methodologies or practice changes.</li><li>Remove roadblocks, provide direction, and proactively address risks that impact BA effectiveness.</li><li>Lead by example, demonstrating accountability, professionalism, transparency, and a commitment to quality.</li></ul> Qualifications Required <ul><li>Bachelor's degree in business, Information Technology, or a related field</li><li>7+ years of experience as a Business Analyst, including 3+ years mentoring or leading analysts</li><li>Outstanding written and verbal communication skills</li><li>Strong understanding of requirement elicitation, documentation, and process modeling</li><li>Proven experience with Agile methodologies (Scrum and/or Kanban)</li><li>Excellent facilitation and stakeholder engagement skills</li><li>Experience working with enterprise-level applications or multi-module systems</li><li>Proficiency with BA and ALM tools such as Jira, Azure DevOps, or similar</li></ul> Preferred<ul><li>Experience guiding BA practice standards or supporting BA Centers of Excellence</li><li>Experience with data governance, data integration, or data quality initiatives</li><li>Familiarity with testing methodologies and ALM or automated testing tools</li><li>Strong analytical and problem-solving skills, including the ability to use data to drive insights</li></ul> Skills & Competencies<ul><li>Leadership and mentoring abilities</li><li>Exceptional communication and presentation skills</li><li>Strong analytical and process improvement mindset</li><li>Excellent stakeholder engagement and facilitation capabilities</li><li>High attention to detail and commitment to quality</li><li>Ability to manage multiple priorities and support projects concurrently</li><li>Proficiency with Microsoft Office Suite and process modeling tools</li></ul> Required:<ul><li>Business Analysis - Expert level knowledge in business analysis functions (requirements, stakeholder management, testing, etc)</li><li>Leadership - Strong leadership and mentoring skills, with experience leading and guiding experienced teams.</li><li>Communication - Effectively conveying ideas to both technical and non-technical teams at various levels of an organization</li><li>Stakeholder Management - Ablity to build and maintain working relationships with key stakeholders within the organization</li><li>Support - Guide and help experienced professionals in achieving their goals and support in removing obsticles.</li></ul>

Question	Topic	Difficulty	Ask Chance
Boarding Times Bias	Statistics	Medium	Very High
Hundreds of Hypotheses	Statistics	Medium	Very High
Decreasing Comments	Product Metrics	Easy	Very High

Crescens Inc. Interview Questions

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