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<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>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.</p>

<p>Write a query to randomly sample a row from this table.</p>

<p><strong>Input:</strong></p>

<p><code>big_table</code> table</p>

<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

<p>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.</p>

<p>How would you assess the validity of the result?</p>


Experiment Validity

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<h3>Job Description</h3><div>Job Description<div><p><strong>Senior Android Engineer</strong></p><p><br /></p><p>Our client is a BTB/BTC software product company with an amazing culture and leadership. The business is in an important (some say critical) high-growth field with abundant opportunities to grow your career. We're seeking a high-performing Senior Android Engineer who can and wants to make an impact because they care about the quality of their deliverables. And have seen enough real-world product delivery to help drive innovation and constant improvement. This is a great role for an engineer who enjoys ownership and takes initiative when ambiguity inevitably rears its ugly head.</p><p><br /></p><p><strong>Responsibilities:</strong></p><ul><li>Develop and implement innovative Android solutions that significantly improve app performance and user experience.</li><li>Create robust, scalable integrations between our Android apps and backend services, enhancing overall system performance and reliability.</li><li>Elevate the technical capabilities of the Android team through mentorship, knowledge sharing, and process improvements.</li></ul><p><br /></p><p><strong>To achieve these objectives, you will:</strong></p><ul><li>Analyze complex business requirements and translate them into efficient technical solutions</li><li>Design and develop high-performance, scalable Android applications using Kotlin</li><li>Integrate Android apps with RESTful APIs and AWS services (EC2, S3, Lambda, SNS, SQS, RDS, NoSQL)</li><li>Implement and maintain coding standards, conduct code reviews, and ensure best practices in Android development</li><li>Mentor junior developers and contribute to hiring and team growth initiatives</li><li>Provide technical leadership in architectural decisions and technology selection</li><li>Collaborate with cross-functional teams to align mobile strategy with overall business goals</li></ul><p><br /></p><p><strong>Qualifications:</strong></p><ul><li>Proven track record of delivering high-impact Android projects (portfolio or case studies required)</li><li>4+ years of professional Android development experience with Kotlin</li><li>Strong understanding of Android architectural patterns (e.g., MVVM, Clean Architecture)</li><li>Experience with backend integration, preferably including AWS services</li><li>Demonstrated ability to lead and mentor other developers</li><li>Bachelor's degree in Computer Science or equivalent practical experience</li></ul><p><br /></p></div></div>

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