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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 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

Tetrascience Salaries by Position

Who We Are TetraScience is the Scientific Data and AI Cloud company with a mission to radically improve and extend human life. TetraScience combines the world's only open, purpose-built, and collaborative scientific data and AI cloud with deep scientific expertise across the value chain to accelerate and improve scientific outcomes. TetraScience is catalyzing the Scientific AI revolution by designing and industrializing AI-native scientific data sets, which it brings to life in a growing suite of next generation lab data management products, scientific use cases, and AI-based outcomes. For more information, please visit tetrascience.com. Our core values are designed to guide our behaviors, actions, and decisions such that we operate as one. We are looking to add individuals to our team that demonstrate the following values: <ul> <li>Transparency and Context- We execute on our ambitious mission by starting with radical data transparency and business context. We openly and proactively share all vital data and make it actionable, so our employees and stakeholders can solve any problem presented to them.</li> <li>Trust and Collaboration- We are committed to always communicating openly and honestly at every level of the organization, functionally, cross-functionally, internally, and externally. Empowering our employees will drive positive change across our entire ecosystem.</li> <li>Fearlessness and Resilience- We must be fearless and resilient to fulfill our potential. We proactively run toward challenges of all types, we unblinkingly acknowledge and confront the brutal facts - which all innovative growth companies invariably face - and we embrace uncertainty and take calculated risks.</li> <li>Alignment with Customers- We know that our customers' success is our success. We are honored and humbled by their commitment to us, and we are completely committed to ensuring they achieve their mission to unlock the world's most important scientific innovations.</li> <li>Commitment to Craft- We take our craft seriously and seek to be best-in-class in all we do, regardless of our functional role, seniority, or tenure. We are members of one team that combines intellectual horsepower and curiosity, humility, and empathy to ensure we are always learning and evolving.</li> <li>Equality of Opportunity- We cannot imagine our journey without a workforce which reflects humanity's diversity. We seek out the best of the best who bring with them unique and invaluable perspectives and talents and embody our common values - regardless of gender, ethnicity, race, or age.</li> </ul> We are seeking a talented Senior Software Engineer to join our team. In this role, you will be responsible for developing and maintaining high-quality software solutions that enable scientists and researchers to leverage and analyze complex datasets. You will work closely with cross-functional teams to understand user requirements, design and implement scalable software architectures, and ensure the reliability and performance of our software products. Who you are You are dedicated to mastering your craft and driven by a passion for innovation. You are an inventor. Committed to continually enhancing both your deliverables and the processes by which you deliver them. You take full ownership of all aspects of software development, ensuring the highest quality outcomes. You exhibit curiosity and a relentless pursuit of understanding and clarity. You view every interaction as a chance to learn and grow. Balancing humility with confidence, you recognize that you don't need to be the smartest person in the room to make a significant impact. Instead, you focus on elevating those around you, contributing to the collective success of your team. What You Will Do <ul> <li>Join the TetraScience engineering team to develop a cutting-edge application for our customers.</li> <li>Design and implement scalable foundational services to support data pipeline processing, search functionality, user management, and other customer-facing features.</li> <li>Work on ML infrastructure and Generative AI applications to advance scientific use cases.</li> <li>Build and deliver high-quality products using Agile software development methodologies.</li> <li>Collaborate with the product management team to transform vision and ideas into tangible results.</li> <li>Work with a geographically distributed team across various time zones.</li> <li>Engage in continuous learning, growth, and professional development.</li> <li>Articulate your vision to peers and leadership, while being open to constructive feedback and maintaining resilience.</li> </ul> Requirements <ul> <li>Strong proficiency (7+ years) in Node.js, TypeScript, and Python.</li> <li>Over 7 years of experience with Amazon Web Services (AWS).</li> <li>Extensive experience with databases, including relational, NoSQL, and data platform infrastructure.</li> <li>Experience with big data distributed systems, such as Databricks, Snowflake, AWS EMR, Glue, and other lakehouse technologies.</li> <li>Proven track record with large-scale data distributed systems.</li> <li>Excellent verbal, written, and presentation skills.</li> <li>Bachelor's degree in Computer Science or a related field.</li> </ul> Benefits <ul> <li>100% employer-paid benefits for all eligible employees and immediate family members</li> <li>Unlimited paid time off (PTO)</li> <li>401K</li> <li>Flexible working arrangements - Remote work + office as needed</li> <li>Company paid Life Insurance, LTD/STD</li> </ul> We are not currently providing visa sponsorship for this position #LIRemote

Who We Are TetraScience is the Scientific Data and AI Cloud company with a mission to radically improve and extend human life. TetraScience combines the world's only open, purpose-built, and collaborative scientific data and AI cloud with deep scientific expertise across the value chain to accelerate and improve scientific outcomes. TetraScience is catalyzing the Scientific AI revolution by designing and industrializing AI-native scientific data sets, which it brings to life in a growing suite of next generation lab data management products, scientific use cases, and AI-based outcomes. For more information, please visit tetrascience.com. Our core values are designed to guide our behaviors, actions, and decisions such that we operate as one. We are looking to add individuals to our team that demonstrate the following values: <ul> <li>Transparency and Context- We execute on our ambitious mission by starting with radical data transparency and business context. We openly and proactively share all vital data and make it actionable, so our employees and stakeholders can solve any problem presented to them.</li> <li>Trust and Collaboration- We are committed to always communicating openly and honestly at every level of the organization, functionally, cross-functionally, internally, and externally. Empowering our employees will drive positive change across our entire ecosystem.</li> <li>Fearlessness and Resilience- We must be fearless and resilient to fulfill our potential. We proactively run toward challenges of all types, we unblinkingly acknowledge and confront the brutal facts - which all innovative growth companies invariably face - and we embrace uncertainty and take calculated risks.</li> <li>Alignment with Customers- We know that our customers' success is our success. We are honored and humbled by their commitment to us, and we are completely committed to ensuring they achieve their mission to unlock the world's most important scientific innovations.</li> <li>Commitment to Craft- We take our craft seriously and seek to be best-in-class in all we do, regardless of our functional role, seniority, or tenure. We are members of one team that combines intellectual horsepower and curiosity, humility, and empathy to ensure we are always learning and evolving.</li> <li>Equality of Opportunity- We cannot imagine our journey without a workforce which reflects humanity's diversity. We seek out the best of the best who bring with them unique and invaluable perspectives and talents and embody our common values - regardless of gender, ethnicity, race, or age.</li> </ul> What You Will Do <ul> <li>Own, prototype, and implement customer solutions.</li> <li>Research and prototype data acquisition strategy for scientific lab instrumentation.</li> <li>Research and prototype file parsers for instrument output files (.xlsx, .pdf, .txt, .raw, .fid, many other vendor binaries).</li> <li>Design and build data models.</li> <li>Design and build Python data pipelines, unit tests, integration tests, and utility functions.</li> <li>Build visualization, report, and dashboards using Spotfire, Tableau, Jupyter notebook and etc.</li> <li>Work with the customer to test and make sure the solution fulfills their requirements and solves their need.</li> <li>Coordinate project kickoff meetings; manage the customer relationship throughout the project, and conduct formal project closeout meetings.</li> <li>Facilitate internal project post-mortems to identify areas of improvement on the next implementation.</li> </ul> Requirements What You Have Done <ul> <li>>5 years in Python and SQL.</li> <li>Passionate about science and building solutions to make the data more accessible to the end-users.</li> <li>Elasticsearch, science background, or experience with scientific instruments.</li> <li>Experience with tools like Spotfire, Tableau, Jupyter notebook (any of them).</li> <li>Undergraduate or graduate degree in chemistry, biology, computer science, statistics, public health, etc.</li> <li>Excellent communications skills, attention to details, and the confidence to take control of project delivery.</li> <li>Quickly understand a highly technical product and effectively communicate with product management and engineering.</li> <li>Strong project, account management, and proactive problem-solving skills.</li> <li>High-bandwidth: thrives when managing multiple simultaneous projects.</li> <li>Intellectually curious: Unwavering drive to learn and know more every day.</li> <li>Ability to think creatively on how to solve projects risks without reducing quality.</li> <li>Team player and ability to "roll up your sleeves" and do what it takes to make the team successful.</li> </ul> Benefits <ul> <li>100% employer-paid benefits for all eligible employees and immediate family members</li> <li>Unlimited paid time off (PTO)</li> <li>401K</li> <li>Flexible working arrangements - Remote work + office as needed</li> <li>Company paid Life Insurance, LTD/STD</li> </ul> We are not currently providing visa sponsorship for this position #LIRemote

Tetrascience Interview Questions

Tetrascience Interview Guides

Tetrascience Interview Questions

Tetrascience Salaries by Position

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