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Virginia Tech Interview Questions

dedicated to its motto, ut prosim (that i may serve), virginia tech takes a hands-on, engaging approach to education, preparing scholars to be leaders in their fields and communities. as the commonwealth’s most comprehensive university and its leading research institution, virginia tech offers 215 undergraduate and graduate degree programs to 31,000 students and manages a research portfolio of $450 million. the university fulfills its land-grant mission of transforming knowledge to practice through technological leadership and by fueling economic growth and job creation locally, regionally, and across virginia.

dedicated to its motto, ut prosim (that i may serve), virginia tech takes a hands-on, engaging approach to education, preparing scholars to be leaders in their fields and communities. as the commonwealth’s most comprehensive university and its leading research institution, virginia tech offers 215 undergraduate and graduate degree programs to 31,000 students and manages a research portfolio of $450 million. the university fulfills its land-grant mission of transforming knowledge to practice through technological leadership and by fueling economic growth and job creation locally, regionally, and across virginia.

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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

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

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?

Virginia Tech Salaries by Position

Research Scientist (Agrawal Lab)Apply now Back to search results Job no: 527606Work type: Research FacultySenior management: College of ScienceDepartment: School of NeuroscienceLocation: Blacksburg, VirginiaCategories: Research / ScientificJob DescriptionThe Agrawal Lab in the School of Neuroscience at Virginia Tech is seeking a Research Scientist to join our team. The Agrawal lab studies neural circuits underlying flexible motor control by utilizing the compact genetic model organism, Drosophila melanogaster. We use a variety of cutting-edge techniques, including quantitative behavior with machine vision-based tracking, optogenetics, in vivo electrophysiology and 2-photon imaging, and EM-based circuit reconstruction.Specifically, we are interested in how animals use proprioceptive sensory information to navigate and move through an often unpredictable world. Proprioception is an animal's sense of the position and movement of its body, and it is essential for coordinated movement across the animal kingdom. Projects in the lab include understanding how proprioceptive information is relayed to the brain to integrate with motor planning, examining how neural circuits integrate wing and leg proprioceptive information in the insect CNS, and exploring how vibration sensing via the legs mediates courtship and other behaviors. See the lab website (https://www.agrawalneurolab.com/) for more details and other potential projects.This position is for two years with possibilities for extension. The research scientist will be responsible for directing, planning, and executing projects in collaboration with Dr. Agrawal. They will have the opportunity to publish first-author papers, contribute to related projects as co-authors, and present their work at national and international conferences and institutions. As a new lab, the position will have the opportunity for lots of interaction and mentorship from Dr. Agrawal as well as opportunities to mentor other junior scientists. Dr. Agrawal is committed to providing all members of the lab with scientific training and mentorship to help them pursue their career goals.Applicant must have a PhD in a relevant field (e.g., biology, neuroscience, computational neuroscience, controls, engineering) and a curiosity and enthusiasm for science. Basic programming skills in Matlab or Python are highly desirable. Interested applicants should apply online at www.jobs.vt.edu. Please include a current Curriculum Vitae, Statement of Research Interests, and the contact information of three (3) references.Required Qualifications* Ph.D. in a relevant field (e.g., biology, neuroscience, computational neuroscience, controls, engineering)* Curiosity and enthusiasm for science* Strong organizational skills and ability to prioritize responsibilities* Strong interpersonal communication skills and the ability to work effectively in a team environment and independently* Willingness to learn new skillsPreferred Qualifications* Basic programming skills in Matlab or Python* Laboratory experience in Drosophila genetics* Able to commit at least two years duration to the positionAppointment TypeRestrictedSalary Information62,000 - 70,000Review Date11/15/2023Additional InformationThe successful candidate will be required to have a criminal conviction check.About Virginia TechDedicated to its motto, Ut Prosim (That I May Serve), Virginia Tech pushes the boundaries of knowledge by taking a hands-on, transdisciplinary approach to preparing scholars to be leaders and problem-solvers. A comprehensive land-grant institution that enhances the quality of life in Virginia and throughout the world, Virginia Tech is an inclusive community dedicated to knowledge, discovery, and creativity. The university offers more than 280 majors to a diverse enrollment of more than 36,000 undergraduate, graduate, and professional students in eight undergraduate colleges, a school of medicine, a veterinary medicine college, Graduate School, and Honors College. The university has a significant presence across Virginia, including the Innovation Campus in Northern Virginia; the Health Sciences and Technology Campus in Roanoke; sites in Newport News and Richmond; and numerous Extension offices and research centers. A leading global research institution, Virginia Tech conducts more than $500 million in research annually.Virginia Tech does not discriminate against employees, students, or applicants on the basis of age, color, disability, sex (including pregnancy), gender, gender identity, gender expression, genetic information, national origin, political affiliation, race, religion, sexual orientation, or military status, or otherwise discriminate against employees or applicants who inquire about, discuss, or disclose their compensation or the compensation of other employees or applicants, or on any other basis protected by law.If you are an individual with a disability and desire an accommodation, please contact Sweta Agrawal at sweta@vt.edu during regular business hours at least 10 business days prior to the event.Advertised: October 31, 2023Applications close:

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