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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?

Statistics

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?

In an A/B test, how can you check if assignment to the various buckets was truly random?

In an A/B test, which of the following is a common method to determine if the assignment to the test groups was truly random?

In an A/B test, which of the following is a common method to determine if the assignment to the test groups was truly random?

Random Bucketing

A/B Testing & Experimentation

<h3>Job Description</h3><div>Job Description<div>Description: We’re looking for a strategic thinker and hands-on technologist who thrives on solving complex data challenges, advising leaders, and driving lasting change. You care deeply about building systems that unlock insight—and elevate others in the process. At CSpring, we transform lives and businesses through data, technology, and genuine human connection. We’re seeking exceptional Data Architects who not only bring deep technical expertise, but also thrive in consulting environments and are confident advising executive stakeholders. We don’t just deliver data-powered solutions—we build trusted partnerships. Working side-by-side with our clients, we help them solve their most complex challenges with clarity, agility, and heart. You’ll have the opportunity to shape strategy, influence executive decision-making, and lead initiatives that make a measurable impact. Whether it's designing architectures that drive transformation, launching statewide analytics strategies, or enabling better decisions through trustworthy data, the work you do at CSpring will matter. You’ll be part of a team known for its technical depth, people-first culture, and passion for giving back—that’s why CSpring has proudly been named a Best Place to Work year after year. Why You’ll Love Working Here:<ul><li>Make a Real Impact – Work on meaningful data-driven projects that improve communities, drive innovation, and empower people.</li><li>People-First Culture – You’re more than your job title here. We invest in your growth and support you as a whole person.</li><li>Shape the Future – Help build a regional data powerhouse, influencing strategy, architecture, and innovation.</li><li>Authentic Partnerships – We don’t just “staff” roles—we solve problems. Our clients trust us because we deliver with integrity, clarity, and care.</li></ul>What You’ll Build: As a Data Architect at CSpring, you’ll lead the design and implementation of scalable, secure, and high-performance data architectures that fuel insights and innovation. You’ll work in a consultative capacity with both technical teams and business leaders, helping clients across sectors define and execute their data strategies. You’ll have strategic influence over enterprise data initiatives and the autonomy to lead from vision to execution. Your work will not only guide technical solutions but also shape long-term business outcomes. You’ll serve as a trusted advisor to executives and contribute to CSpring’s internal growth through mentorship and practice leadership. Key Responsibilities:<ul><li>Architect modern data solutions using Azure, AWS, or Snowflake platforms.</li><li>Design data warehouse and data lake/lakehouse environments for analytics, reporting, and data science.</li><li>Develop data models and metadata strategies that enable trusted, reusable insights.</li><li>Create strategies for master data management, governance, and data quality.</li><li>Lead secure, scalable ETL/ELT pipeline implementations (Azure Data Factory, Talend, Informatica, etc.).</li><li>Guide clients through data modernization efforts including migration, integration, and platform selection.</li><li>Lead data strategy workshops and serve as a trusted advisor to executive stakeholders.</li><li>Translate business objectives into scalable technical architectures.</li><li>Define and enforce architecture standards and governance frameworks.</li><li>Support data cataloging, lineage, and compliance (e.g., HIPAA, FERPA, CJIS).</li><li>Mentor and elevate team members, fostering a collaborative, high-performing culture.</li><li>Contribute to the evolution of CSpring’s internal architecture practice and methodologies.</li><li>Stay ahead of industry trends and recommend innovations that align with CSpring’s mission.</li></ul>Qualifications:We’re looking for a strategic thinker and hands-on technologist who thrives on solving complex data challenges, advising leaders, and driving lasting change. You care deeply about building systems that unlock insight—and elevate others in the process. Required:<ul><li>8+ years of experience in data architecture, data engineering, or related roles.</li><li>Proven expertise designing cloud-based data platforms (Azure Synapse, AWS Redshift, Snowflake, etc.).</li><li>Strong proficiency in conceptual, logical, and physical data modeling.</li><li>Experience building secure, automated pipelines and integrating enterprise systems.</li><li>Deep understanding of data warehousing concepts and performance optimization.</li><li>Experience implementing governance and metadata management solutions.</li><li>Proficiency in SQL and a scripting language (e.g., Python).</li><li>Strong understanding of compliance, privacy, and security in cloud data environments.</li><li>3+ years in a consulting/professional services role engaging across industries.</li><li>Proven ability to advise executive stakeholders and drive alignment between business and technology.</li><li>Experience leading client engagements from vision through execution.</li><li>Excellent communication and interpersonal skills.</li><li>Bachelor’s degree in Computer Science, Data Science, Information Systems, or related field.</li></ul>Preferred:<ul><li>Experience in public sector, healthcare, life sciences, education, or nonprofit industries.</li><li>Certifications: Azure Data Engineer, AWS Big Data Specialty, CDMP, or equivalent.</li><li>Familiarity with Agile delivery and cross-functional collaboration.</li><li>Interest in contributing to thought leadership (e.g., speaking, writing, forums).</li></ul>Come Collaborate with Us! At CSpring, we believe that unlocking potential in others unlocks our own. You’ll join a collaborative, values-driven community where curiosity and connection thrive. We come together regularly for team-building, service events, learning lunches, and more. We celebrate wins, support one another through challenges, and continually invest in each other’s growth. If you're ready to join a positive, energetic, and purpose-driven team where your work truly matters — apply now and help us build what’s next. Requirements: </div></div>

<h3>Job Description</h3><div>Job Description<div>Description:At CSpring, we believe in the power of data to drive decisions and real-world impact. We’re a purpose-driven consulting firm specializing in data strategy, data engineering, and data analytics. Our clients span the public and private sectors, and our work helps them solve complex problems, gain insights, and achieve measurable results. We're seeking talented professionals who are collaborative, curious, and committed to making a difference that thrive at the intersection of data, technology, and business strategy. Whether you're passionate about transforming public programs, enabling executive decision-making, or modernizing legacy systems, you'll find meaningful work and purpose here. Why You’ll Love Working Here<ul><li>Purposeful Projects – Improve systems that serve real people by delivering smarter data, streamlined processes, and strategic insight.</li><li>People-First Culture – We’re as committed to your growth as we are to delivering high-impact solutions. You’ll find support, autonomy, and community here.</li><li>Strategic, Hands-On Work – From data architecture and documentation to client workshops and solution delivery, you’ll influence every step of the process.</li><li>Collaborative Trust – Our clients rely on us to listen carefully, deliver consistently, and guide wisely. We partner with integrity, curiosity, and heart.</li></ul>What You’ll Do<ul><li>Analyze healthcare-related data to support business decision-making.</li><li>Develop and maintain reports and dashboards using SQL and other BI tools.</li><li>Collaborate with stakeholders to gather requirements and recommend technical solutions.</li><li>Ensure data integrity and accuracy in all reports and analyses.</li><li>Perform data profiling and validation to identify data anomalies.</li><li>Document data processes and maintain technical documentation.</li><li>Provide regular project updates to customers and maintain strong communication.</li><li>Mentor junior team members and provide technical training as needed.</li><li>Stay current with emerging technologies and industry best practices.</li><li>Perform additional duties as required to support project and organizational goals.</li></ul>Requirements:What You Bring<ul><li>5+ years of healthcare business analysis experience supporting business initiatives through data analysis, writing business requirements and user acceptance testing of various systems </li><li>5+ years of SQL development, including performance tuning.</li><li>3+ years of experience working with State Medicaid and CHIP agencies or equivalent healthcare payer</li><li>Basic understanding of CMS reporting requirements for Medicaid</li><li>Strong communication skills and ability to work directly with clients.</li><li>Bachelor’s or advanced degree in IT, Computer Science, Mathematics, Statistics, or a related STEM field.</li><li>Excellent organizational skills and ability to manage multiple priorities.</li><li>Strong team collaboration and adaptability.</li></ul>Preferred Qualifications<ul><li>Experience working with PERM, T-MSIS, CMS Federal Reporting or similar projects </li><li>Experience in developing Adult/Child Core Measures, HEDIS, CHIPRA or similar quality metrics</li><li>Experience with healthcare-related data systems.</li><li>Experience with BI tools such as Tableau or Power BI.</li><li>Enterprise Data Warehouse (EDW) Data Analyst</li><li>Familiarity with data warehousing best practices.</li><li>Experience working in Agile environments</li></ul>Come Build With UsAt CSpring, we unlock the potential of people and data. If you're ready to lead meaningful projects, collaborate with passionate teams, and grow your career in a people-first consulting environment—apply today! </div></div>

Question	Topic	Difficulty	Ask Chance
Boarding Times Bias	Statistics	Medium	Very High
Hundreds of Hypotheses	Statistics	Medium	Very High
Random Bucketing	A/B Testing & Experimentation	Medium	Very High

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