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Tombras Interview Questions

A/B Testing

Algorithms

Analytics

Machine Learning

Probability

Product Metrics

Python

Statistics

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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?

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


<p>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?</p>

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><div>Tombras, a 400+ person, full-service, national advertising agency with a digital mindset, is seeking a Sr. Data Analyst.</div><div><br /></div><div><b>Where you’ll be working:</b> Knoxville or Atlanta.  Relocation may be provided.</div><div><br /></div><div>The Sr. Data Analyst will report directly to the Associate Director and VP, Analytics.  You will be managing the planning, execution, evaluation and effective communication of data-driven, digital results and insights.  This includes the development and implementation of holistic, cross-channel measurement (and testing) plans.</div><div> </div>What you'll be doing:<ul><li><b>Measurement Strategy:</b></li><li> Developing (with team) and executing cross channel media measurement and testing plans</li><li> Developing (with team) and executing sales funnel analysis, lifetime value analysis, customer segmentation and forecasting</li><li> Developing (with team) and executing tagging strategy </li><li> Ensuring appropriate analytics integration into agency production processes</li></ul><div><br /></div><ul><li><b>Assessment and Analysis:</b></li><li> Interpreting media marketing data and analyze its effects on KPIs and ROI</li><li> Delivering analyses (i.e. insights and actions) via the appropriate means (e.g. dashboards, deep dive analyses, infographics, etc.)</li><li> Presenting results in a simple, story-telling fashion</li><li> Collaborating with numerous partners and agency departments to keep analyses integrated and focused.</li></ul>What you bring:<ul><li>3+ years of working with analysis of digital media channels in a business environment; prior experience working in an ad agency is a plus</li><li>Strong working knowledge of Tableau</li><li>Strong working knowledge of Marketing and Digital Marketing</li><li>Strong working knowledge of Web Analytics Platforms (Google Analytics, Adobe Analytics, etc.)</li><li>In-depth experience with AdWords, Facebook Business Manager, DCM is a plus</li><li>SQL knowledge or experience with database administration a plus</li></ul><div><br /></div><div>Critical Success Factors and Key Personal Competencies:</div><ul><li>An analytical mind, an entrepreneurial spirit, and innovative strategic thinking</li><li>Ability to collaborate with cross-functional teams and make recommendations</li><li>Experience in presenting analyses to both small and large groups</li><li>Bachelor's in Marketing or Analytics and/or equivalent work experience</li><li>Master's in Marketing or Business Analytics a plus</li></ul><div><b>Why Join Tombras Analytics?</b></div><div><br /></div><div>Tombras Analytics sits at the cornerstone of Connecting Data + Creativity for Business Results and delivers Diagnostic, Descriptive, Predictive and Prescriptive Analytics across both internal teams and a diverse global, national and regional client base. We are a passionate team of 20+ professionals dedicated to pushing the boundaries of analytics to help our clients discover opportunities, capitalize on trends, create efficiencies and improve marketing and business results for maximum growth.</div><div><br /></div><div><b>Why you’ll want to work at Tombras:</b></div><div><br /></div><div>You’ll be joining one of the top independent agencies in North America. Connecting Data & Creativity for Business Results® is working for our clients and creating a flywheel affect fueling both client and agency growth.  You’ll be a part of a highly creative agency that has been recognized by AdAge, Adweek, Communication Arts, Fast Company, Forbes and Fortune. Tombras was recently named 2025 AdAge Agency of the year and 2024 AdAge Independent Agency of the Year.</div><div><br /></div><div><b>Tombras Benefits:</b></div><div><br /></div><div>Family - It comes first, on every list.  Tombras has been family-run since day 1, we strive to facilitate a family-oriented environment rooted in supporting one another.</div><div>Dog-friendly offices</div><div>Unlimited PTO</div><div>Generous parental leave for primary and non-primary caregivers. </div><div>Medical (PPO or High Deductible option) for employee + dependents</div><div>401(k) Participation</div><div>Employer-paid Dental & Vision </div><div>A company culture of promotions from within and an atmosphere allowing for varied and rapid career development. </div><div>New, Modern building in Downtown Knoxville</div><div>Want more reasons to work at Tombras?  Check out the latest Tombras News and  Our Values.</div><div><br /></div><div>Tombras is proud to be an equal opportunity employer dedicated to pursuing and hiring a diverse workforce. </div><div>Tombras is an E-Verify employer and participates in the E-Verify program.</div><div><br /></div><div><i>This job description is not designed to cover or contain a comprehensive listing of activities, duties or responsibilities that are required of the employee. Duties, responsibilities and activities may change or new ones may be assigned at any time with or without notice. Job may require traveling overnight, driving long distances as required and sitting for extended periods of time with occasional walking and standing and occasionally lifting or carrying articles weighing less than 10 pounds.</i></div><div><br /></div></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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