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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

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?

Insync Staffing Salaries by Position

POSITION TITLE Digital Applications Software Engineer POSITION DUTIES & RESPONSIBILITIES •Responsible to build, deploy and iterate on new features and capabilities, for a portfolio of healthcare software applications, as part of an agile product development team. •Collaborate with other engineers, product owners, clinical stakeholders, and customer success teams to identify solution requirements and drive appropriate software design decisions. •Produce high quality deliverables through good design, implementation and unit testing. •Work in accordance to the Bayer Quality Management System and processes for regulated software medical devices. QUALIFICATIONS Education Requirement(s): •A Bachelor's degree in Computer Science or a related technical field Required Skills & Experience: •3+ years of software development experience •A solid foundation in computer science with strong competencies in data structures, lgorithms, and software design •Professional experience with object-oriented programming languages, such as Java •Recent experience with web-based UI Frameworks, such as ReactJS, HTML5, CSS •Knowledge of common software technologies: SQL, XML, XSLT, source control. •Familiarity with Linux Preferred Skills and Experience: •Experience with Spring Boot •Test automation frameworks such as JUnit •Scripting languages - bash, Python •Experience with cloud platforms, such as GCP, AWS, Azure •Exposure to build systems and other continuous integration tools, such as Maven, Gradle, Jenkins, GitLab CICD •Experience working in the healthcare industry or developing SaaS products. •Radiology, Imaging IT, or Healthcare IT domain knowledge and healthcare system (e.g. RIS, PACS, EMR, Dictation) integration using standards such as DICOM, FHIR, and HL7 v2. Is travel required for this position? No Will the work location for this assignment be office based, remote, or hybrid? Hybrid Worker Shift Start Time M - 08:00 AM Is driving required for this position? (No Value) Subcontractor Submittals Allowed? (No Value) Is Filtered Assessment Required? (No Value) Production/Non Production Non Production Benefits (employee contribution): <ul> <li> Health insurance </li> <li> Health savings account </li> <li> Dental insurance </li> <li> Vision insurance </li> <li> Flexible spending accounts </li> <li> Life insurance </li> <li> Retirement plan </li> </ul> ll qualified applicants will receive consideration for employment without regard to age, race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or status as a protected veteran.

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