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Lehigh University Interview Questions

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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 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

Lehigh University Salaries by Position

Institutional Research Analyst Job no: 503076 Work type: Exempt Staff Full-time Location: Partial Remote, Bethlehem Categories: Information Technology Are you a data enthusiast with a passion for higher education? Join Lehigh University, a leading research institution renowned for its academic excellence and vibrant campus community, as an Institutional Research Analyst (Position Number S88910). In this pivotal role, you will be at the forefront of data-driven decision-making, playing a crucial part in shaping the university's strategic direction. As an Institutional Research Analyst, you will collect, analyze, and interpret a vast array of institutional data, providing invaluable insights into areas such as student enrollment, retention, graduation rates, faculty productivity, and key performance indicators. Key Responsibilities: •Gather, analyze, and interpret complex data from various university systems and external sources •Develop and maintain comprehensive databases and data warehouses •Conduct quantitative analyses and produce reports, dashboards, and data visualizations •Collaborate with stakeholders to identify data needs and provide actionable insights •Ensure data integrity, accuracy, and compliance with relevant policies and regulations •Participate in strategic planning and decision-making processes Qualifications: •Bachelor's Degree or the equivalent combination of education and experience; Master's Degree preferred •One to three years of related work experience •Proficiency in data analysis tools (e.g., SQL, Python, R, Tableau, Power BI) •Strong analytical and problem-solving skills •Excellent written and verbal communication abilities •Attention to detail and commitment to data quality •Ability to work independently and as part of a team At Lehigh University, you'll be part of a dynamic and inclusive community that values diversity, fosters innovation, and promotes personal and professional growth. We offer a competitive compensation package, comprehensive benefits, and a wealth of opportunities for career advancement and lifelong learning. This position is a Grade: 9 - 40, offering an approximate salary of $54,390-$66,190. The duties of this position may allow the employee to work partially remote as deemed appropriate by their supervisor. Persons with disabilities who anticipate needing an accommodation for any part of the interview or hiring process may contact Lehigh's Accommodations Specialist Lehigh University is an equal opportunity employer and is committed to building a diverse and inclusive environment for all. We actively encourage applications from individuals of diverse backgrounds and experiences. The Lehigh community takes seriously our commitment to antiracism and The Principles of our Equitable Community. Successful completion of standard background checks including but not limited to: social security verification, education verification, national criminal background checks, motor vehicle checks, PATCH, FBI fingerprinting, Child Abuse Clearance and credit history based upon the requirements of the position Only complete applications will be considered therefore please complete the application in its entirety. Once the posting is removed from the website applications may no longer be allowed to be completed. Advertised: September 09, 2024 Eastern Daylight Time Applications close:

Lehigh University Interview Questions

Lehigh University Interview Guides

Lehigh University Interview Questions

Lehigh University Salaries by Position

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