Prepare for and practice interview questions from Techdigital Corporation.

Techdigital Corporation Interview Questions

Techdigital Corporation Interview Guides

<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>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.</p>

<p>What factors could have biased this result, and what would you look into?</p>


<p>What could potentially bias the average boarding time in favor of an airline that only flies domestically?</p>

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?

Techdigital Corporation Salaries by Position

<p>3-5 years of Data Visualization experience using CRM Analytics (Aka TableauCRM, Einstein Analytics etc..).

Ability to quickly learn and gain deep understanding of SFDC business processes. Experience in Marketing Analytics (Lead management, Pipe metrics, Events/Campaigns etc..) a huge plus.

Expert in CRM Analytics or Tableau business and development standards and best practices related to reports, lenses, dashboards and all related objects.

Expert in the visual representation of complex information for driving business impact.

Subject Matter Expert and Evangelist on enterprise data, visualization, data analysis, data modeling, SQL constructs and workload management.

Experience with one or more database management tools like Oracle, BigQuery, Snowflake etc.

Ability to prioritize and execute multiple tasks in a highly dynamic environment with a result oriented mindset.

Detail oriented with proven analytical, problem identification and resolution skills.

Ability to work effectively in a semi-structured and fast-paced environment, and have a high degree of self-management with clear communication and commitment to delivery timelines.
#J-18808-Ljbffr</p>

Techdigital Corporation Interview Questions

Techdigital Corporation Interview Guides

Techdigital Corporation Interview Questions

Techdigital Corporation Salaries by Position

Techdigital Corporation Opening Jobs