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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?

Let’s say we have a table with an <code>id</code> and <code>name</code> fields. The table holds over 100 million rows and we want to sample a random row in the table without throttling the database.

Write a query to randomly sample a row from this table.

Input:

<code>big_table</code> table

<table>
<thead>
<tr>
<th>Columns</th>
<th>Type</th>
</tr>
</thead>

<tbody>
<tr>
<td><code>id</code></td>
<td>INTEGER</td>
</tr>

<tr>
<td><code>name</code></td>
<td>VARCHAR</td>
</tr>
</tbody>
</table>

Write a query to randomly sample a row from a big table.

Random SQL Sample

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

Comtec consultants Salaries by Position

Position: Pricing Analyst/Cost Analyst Location: 3617 Parkway Lane Peachtree Corners, GA Duration: 6 Months Description: Pricing Analyst - 4 Days onsite Overview: The EP Business Unit, located in Peachtree Corners,....

Position: Pricing Analyst/Cost Analyst Location: 3617 Parkway Lane Peachtree Corners, GA Duration: 6 Months Description: Pricing Analyst - 4 Days onsite Overview: The EP Business Unit, located in Peachtree Corners,....

Senior Business Case Analyst 12 Months Richland WA Description: The Senior Business Case Analyst will play a critical role in shaping strategic decisions and driving business performance by conducting comprehensive analyses and developing robust business cases. This role requires a highly analytical and detail-oriented individual with extensive experience in business analysis, financial modeling, and stakeholder management. The Senior Business Case Analyst will work closely with senior leadership, project managers, and cross-functional teams to ensure that business cases align with organizational goals and deliver value. Principal Accountabilities Business Case Development: Lead the creation and evaluation of business cases for strategic initiatives, projects, and investments. Develop detailed financial models and forecasts to support business cases, including cost-benefit analysis, ROI calculations, and risk assessments. Collaborate with stakeholders to gather and analyze business requirements, identify potential impacts, and propose solutions. Strategic Analysis: Conduct market research and competitive analysis to inform business case development and strategic planning. Analyze business processes and operational metrics to identify opportunities for improvement and efficiency. Provide insights and recommendations based on data-driven analysis to support decision-making. Stakeholder Engagement: Communicate findings and recommendations effectively to senior leadership and other key stakeholders. Facilitate workshops and meetings to gather input, present analysis, and obtain buy-in for business cases. Manage relationships with internal and external stakeholders to ensure alignment and successful implementation of initiatives. Project Oversight: Oversee the implementation of approved business cases, ensuring that projects are executed according to plan and deliver expected outcomes. Monitor and report on the progress of initiatives, identifying and addressing issues or deviations from the business case. Continuous Improvement: Stay current with industry trends, best practices, and emerging technologies to continuously enhance business analysis methodologies. Contribute to the development and refinement of business case templates, tools, and processes. Other: Key risk indicator and performance indicator development. Business case performance reporting and trending. Other analytics, benchmarking, and research as assigned. Required Education and Experience Bachelor’s degree in business administration, Finance, Economics, or a related field. MBA or relevant advanced degree preferred. Minimum of 7-10 years of experience in business analysis, financial modeling, or a related field, with a proven track record of developing and presenting business cases that supported effective business decisions and resource allocation. Advanced proficiency in financial modeling and analysis, including Excel and other analytical tools. Strong analytical and problem-solving skills with the ability to interpret complex data and make strategic recommendations. Excellent communication and presentation skills, with the ability to convey complex information to diverse audiences. Proven experience in managing cross-functional projects and working with senior leadership. High level of attention to detail and accuracy. Desired abilities and skills Competencies: Strategic Thinking Financial Acumen Analytical and Problem-Solving Skills Stakeholder Management Project Management Communication and Presentation Skills Work Environment: This role may involve occasional travel to various company locations or client sites. Ability to work in a fast-paced environment and manage multiple priorities.

Comtec consultants Interview Questions

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Comtec consultants Interview Questions

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