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<p>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.</p>

<p>What factors could have biased this result, and what would you look into?</p>


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

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

<p>You are testing hundreds of hypotheses with many <em>t</em>-tests. What considerations should be made?</p>


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

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?

<p>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.</p>

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

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


<p>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?</p>

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?

Product Metrics

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<h5>Primary Job Title </h5><p>Senior Business Analyst </p><h5>Alternate/Related Job Titles </h5><p>Data Analyst Business Data Consultant Power BI Data Analyst Business Intelligence Analyst </p><h5>Location </h5><p>San Ramon, California (Hybrid Bay Area residents only) </p><h5>Onsite Flexibility </h5><p>Hybrid Required to attend on?site workshops in San Ramon or other Bay Area office locations </p><h5>Contract Details </h5><ul> <li>Position Type: Contract </li><li>Contract Duration: 12 months </li><li>Start: As Soon As Possible </li><li>Pay Range: $65$70/hour </li><li>Work Authorization: Local candidates only (currently residing in the Bay Area) </li><li>Equipment: Laptop provided </li><li>PPE: May be required; PPE procurement and reimbursement are supplier responsibility </li></ul> <h5>Job Summary </h5><p>The Senior Business Analyst will perform advanced analytical work to deliver data?driven insights that inform strategic and operational business decisions. This role combines data analytics, Python scripting, and Power BI visualization expertise to create actionable metrics and performance dashboards. The analyst will collaborate with leadership teams to define business needs, forecast outcomes, and develop recommendations that improve operations and align with corporate objectives. </p><h5>Key Responsibilities </h5><ul> <li>Perform complex data analysis using <b>Excel</b>, <b>Power Query</b>, <b>Python</b>, and <b>Power BI</b> to generate insights and customized reports. </li><li>Develop, enhance, and maintain analytical models to predict business outcomes using multiple data variables. </li><li>Identify trends, evaluate results, and make strategic recommendations that drive measurable improvements. </li><li>Manage small to mid?size projects, ensuring deliverables are completed accurately and on time. </li><li>Create visual management dashboards and reports via Power BI, PowerPoint, and other visualization tools. </li><li>Communicate analytical findings and recommendations clearly to senior management and stakeholders. </li><li>Contribute to data governance, business intelligence, and KPI development initiatives across departments. </li></ul> <h5>Required Qualifications </h5><ul> <li>Bachelors degree in Business, Finance, Economics, Engineering, or a related discipline (or equivalent experience). </li><li>4+ years of related experience in data analysis, business analytics, or data?driven project environments. </li><li>Proven experience using <b>Python</b>, <b>Power BI</b>, and <b>Power Query</b> for data transformation and visualization. </li><li>Strong analytical and problem?solving skills, including what?if modeling and quantitative analysis. </li><li>Excellent communication, presentation, and stakeholder management skills. </li></ul> <h5>Preferred Qualifications </h5><ul> <li>MBA or advanced degree in analytics, economics, or engineering. </li><li>Experience with VBA, data ELT processes, and project management tools. </li><li>Demonstrated understanding of market research, operational analytics, and metric?based reporting. </li><li>Proficiency with Microsoft Office Suite, Visio, and related productivity software. </li></ul> <h5>Technical Skills </h5><ul> <li>Python, Power BI, Power Query, and VBA </li><li>Data ELT and modeling </li><li>Metrics and KPI development </li><li>Project management and market research analytics </li></ul> <h5>Soft Skills </h5><ul> <li>Strong analytical thinking and adaptability to changing business conditions </li><li>Ability to manage multiple priorities and projects </li><li>Effective communicator and influencer with presentation expertise </li></ul> <h5>Benefits </h5><ul> <li>Medical, Vision, and Dental Insurance Plans </li><li>401k Retirement Fund </li></ul> <h5>About the Client </h5><p>A leading natural gas and electric energy company serving millions of customers across the U.S. Known for reliability, sustainability, and innovation, the company fosters a positive and collaborative work environment. Join a mission?driven organization committed to delivering safe, affordable, and clean energy to communities nationwide. </p><h5>About GTT </h5><p>GTT is a minority?owned staffing firm and a subsidiary of Chenega Corporation, a Native American?owned company in Alaska. As a Native American?owned, economically disadvantaged corporation, we highly value diverse and inclusive workplaces. Our clients include Fortune 500 banking, insurance, financial services, and technology companies, along with major life sciences, biotech, utility, and retail organizations across the U.S. and Canada. </p><h5>Job Number </h5><p>25-28110 #LI-GTT #LI-Hybrid #gttjobs </p>#J-18808-Ljbffr

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

Global Technical Talent Interview Questions

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Global Technical Talent Interview Questions

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