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Nfi Interview Questions

nfi is a fully integrated supply chain solutions provider headquartered in cherry hill, nj. privately held by the brown family since its inception in 1932, nfi generates more than $1 billion in annual revenue and employs nearly 7,800 associates. nfi owns facilities globally and operates nearly 25 million square feet of warehouse and distribution space. its company-owned fleet consists of over 2,000 tractors and 8,200 trailers, operated by more than 2,500 company drivers and 250 owner operators. its business lines include transportation, warehousing, intermodal, brokerage, global, real estate, trailer storage, and solar services.

nfi is a fully integrated supply chain solutions provider headquartered in cherry hill, nj. privately held by the brown family since its inception in 1932, nfi generates more than $1 billion in annual revenue and employs nearly 7,800 associates. nfi owns facilities globally and operates nearly 25 million square feet of warehouse and distribution space. its company-owned fleet consists of over 2,000 tractors and 8,200 trailers, operated by more than 2,500 company drivers and 250 owner operators. its business lines include transportation, warehousing, intermodal, brokerage, global, real estate, trailer storage, and solar services.

Overview

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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?

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 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

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Overview: The Distribution Data Analyst is responsible for working closely with leaders in the organization to understand data needs and work in partnership with other team members to develop efficient means to capture, analyze and report key information. This role is also responsible for using this data to develop our internal strategy and the quality performance/customer satisfaction. This role will report to the Regional Director of Quality. Responsibilities: <ul><li>Collects, cleanses, manipulates, and validates data from multiple platforms/systems</li><li>Analyzes and converts data into information to identify areas of opportunity or to support business cases</li><li>Defines data and/or report requirements in collaboration with operational areas</li><li>Partners with IT programmers to develop output to meet business needs</li><li>Supports daily/weekly performance reviews and planning meetings as needed</li><li>Assists with process creation and methods to gather supply chain data</li><li>Assists with action item follow-up; if needed, escalates issues appropriately for resolution</li><li>Translate quantitative and qualitative data into useful information</li><li>Understand and explain interdependencies of information and events, including their up/downstream impact</li><li>Provide internal Quality team with accurate data on business performance; summarize, develop conclusions and identify opportunities to achieve desired performance</li><li>Ability to develop recommendations through analyzing data. </li><li>Active part of the data analytics team to develop metric processes and tools, analyze trends, and report out performance for corrective action review.</li></ul> Qualifications: <ul><li>College Degree required</li><li>3 plus years experience working in corporate or distribution environment.</li><li>Transportation, Distribution, Supply Chain industry a plus.</li><li>Excellent excel and access skills with an emphasis on business statistics.</li><li>Critical thinking and problem-solving skills include the:<ul><li>Ability to utilize a structured process of collecting and analyzing information (investigative skills)</li><li>Ability to simplify complex processes by systematically organizing the parts of a problem or situation in a logical manner</li><li>Ability to clarify assumptions and constraints for expectation/output alignment</li></ul></li><li>Ability to work with very large amounts of data from multiple sources</li><li>Working knowledge of data mining and reporting tools</li><li>Detail-oriented with a strong focus on accuracy</li><li>Effective time management skills; ability to manage multiple activities and deadlines simultaneously</li><li>Interpersonal skills; ability to work independently and as part of a team</li><li>Strong written and verbal communication skills including the ability to present complex ideas simply and clearly to all levels</li><li>Demonstrated ability to handle confidential information appropriately.</li><li>Excellent verbal and written communication skills.</li><li>Demonstrated Flexibility, Initiative and Collaboration skills required.</li></ul> Equal Opportunity Employer/Protected Veterans/Individuals with Disabilities The contractor will not discharge or in any other manner discriminate against employees or applicants because they have inquired about, discussed, or disclosed their own pay or the pay of another employee or applicant. However, employees who have access to the compensation information of other employees or applicants as a part of their essential job functions cannot disclose the pay of other employees or applicants to individuals who do not otherwise have access to compensation information, unless the disclosure is (a) in response to a formal complaint or charge, (b) in furtherance of an investigation, proceeding, hearing, or action, including an investigation conducted by the employer, or (c) consistent with the contractors legal duty to furnish information. 41 CFR 60-1.35(c)

Nfi Interview Questions

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