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Moody'S Analytics Interview Questions

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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

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

Moody'S Analytics Salaries by Position

This job was posted by https://www.kansasworks.com : For more information, please see: https://www.kansasworks.com/jobs/13021018

The Work:

Develop and maintain product-specific data pipelines to ensure the timely and accurate flow of data from various sources to our Databricks platform.
With the guidance of technical peers, learn to work with business and other cross-functional team members to identify, integrate, and distribute data data from sources to destinations.
Work on project squads adhering to project management best practices and participating in scrum ceremonies
Gain an understanding of data usage patterns and requirements within the organization to design and implement appropriate data models in the data warehouse, ensuring compliance with industry regulations.
Utilize Databricks and AWS/GCP services to manage, store, and process data, ensuring optimal performance, security, and scalability while adhering to data protection standards.
Leverage orchestration tools, such as Databricks Workflows or Airflow, to orchestrate and monitor data pipelines, ensuring seamless integration, data quality, and compliance with regulatory requirements.
Implement data transformation and validation processes using dbt and SQL to ensure data accuracy, consistency, and regulatory compliance across the organization.
Continuously monitor, troubleshoot, and optimize data pipelines to ensure data reliability, performance, and adherence to best practices and industry regulations
Stay current with industry trends, emerging technologies, and regulatory changes to ensure the company remains at the forefront of data engineering best practices in the compliance and AML space.

Qualifications

1-2+ years of experience in data, or backend engineering roles.
Bachelor\'s degree in Computer Science, Engineering, or a related field.
Some exposure and understanding of data modeling concepts such as the snowflake/Kimball model and Data Vault.
Some understanding of data engineering concepts such as orchestration & pipelining, data modeling, streaming and warehousing
Excellent problem-solving skills and the ability to work independently or as part of a team.
Eagerness to learn new technologies and adapt to industry trends and changes.

For US-based roles only: the anticipated hiring base salary range for this position is\$106,600.00-\$154,600.00, depending on factors such as experience, education, level, skills, and location. This range is based on a full-time position. In addition to base salary, this role is eligible for incentive compensation. Moody\'s also offers a competitive benefits package, including not but limited to medical, dental, vision, parental leave, paid time off, a 401(k) plan with employee and company contribution opportunities, life, disability, and accident insurance, a discounted employee stock purchase plan, and tuition reimbursement.\ \ Moody\'s is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, sex, gender, age, religion, national origin, citizen status, marital status, physical or mental disability, military or veteran status, sexual orientation, gender identity, gender expression, genetic information, or any other characteristic protected by law. Moody\'s also provides reasonable accommodation to qualified individuals with disabilities or based on a sincerely held religious belief in accordance with applicable laws. If you need to inquire about a reasonable accommodation, or need assistance with completing the application process, please email . This contact information is for accommodation requests only, and cannot be used to inquire about the status of applications.

For San Francisco positions, qualified applicants with criminal histories will be considered for employment consistent with the requirements of the San Francisco Fair Chance Ordinance.

This position may be considered a promotional opportunity, pursuant to the Colorado Equal Pay for Equal Work Act.

Click here to view our full

<div><div>3591 Moody’s is a developmental culture where we value candidates who are willing to grow. So, if you are excited about this opportunity but don’t meet every single requirement, please apply! You may be a perfect fit for this role or other open roles. Moody's is a global integrated risk assessment firm that empowers organizations to make better decisions. At Moody’s, we’re taking action. We’re hiring diverse talent and providing underrepresented groups with equitable opportunities in their careers. We’re educating, empowering and elevating our people, and creating a workplace where each person can be their true selves, reach their full potential and thrive on every level. Learn more about our DE&I initiatives, employee development programs and view our annual DE&I Report at moodys.com/diversity The Opportunity: We are currently looking for a Director - Government Data Scientist that understands the importance of transforming complex data sets into useful information to solve challenges. As a Director - Government Data Scientist at Moody’s Analytics, you can use your skills and experience to support a mission and use data for good. We need a Government Data Scientist like to empower government agencies to master their data and use it to achieve better, faster mission outcomes for the nation. <ul><li>Must have security clearance** </li></ul>Job Responsibilities: <ul><li>Research, develop, and test data methodologies, and generate cross-functional solutions through analysis and visualization of large data sets.</li><li>Constructing usable data sets from multiple sources to meet customer needs.</li><li>Data analysis and model-fitting to reveal data features of interest.</li><li>Deployment of AI/machine-learning and predictive modeling capabilities</li><li>Identifying and analyzing anomalous data (including metadata)</li><li>Developing conceptual design and models to address mission requirements.</li><li>Present data findings and recommendations to clients and stakeholders using your knowledge of databases, business intelligence tools, including Qlik and Tableau, scripting languages such as SQL, Python, and R, and the Microsoft Office Suite.</li><li>Developing qualitative and quantitative methods for characterizing datasets in various states.</li><li>Utilizes scientific inquiry in the independent development of mathematical models and computer programs to evaluate and predict the ability to support assigned projects, studies, or problems.</li><li>Establish quantitative and qualitative metrics and key performance indicators to drive technical outcomes.</li><li>Apply consulting skills and data analytics experience by simplifying technical requirements and trends, based on audience. </li></ul>Qualifications And Experience Requirements <ul><li>Bachelors Degree in in Mathematics, Applied Mathematics, Statistics, Applied Statistics, Machine Learning, Data Science, Operations Research, Computer Science or related fields if accompanied by a Certificate in Data Science from an accredited college/university.</li><li>10 + years of relevant experience</li><li>3+ years of experience with data visualization tools, including Qlik, Tableau, PowerBI</li><li>3+ years of experience with data modeling and building dashboards and data visualizations.</li><li>Experience with database systems, SQL queries, and programming languages, including R or Python</li><li>The ideal candidate has a desire for continual learning along with excellent analytical, problem-solving, communication (oral and written), and interpersonal skills who is: - Accountable - Proactive - Detail oriented - Able to solve complex problems - Proficient with critical thinking and reasoning to make analytic determinations - Effective at working in a collaborative team environment - Able to bridge the gap with both technical and non-technical audiences.</li><li>Knowledge, skills, and relevant experience in one or more of the following is required: - Designing and implementing machine learning - Data mining - Advanced analytical algorithms - Programming - Data science - Advanced statistical analysis - Artificial Intelligence - Computational science - Software engineering - Data engineering.</li><li>Knowledge of national-level intelligence and defense doctrine, regulations, policies, guidelines, requirements, and initiatives related to assigned program(s) and/or project(s).</li><li>Knowledge of security procedures to maintain control of classified material.</li><li>Skill in applying analytical and evaluation techniques to identify, investigate, resolve complex issues or problems, and modify standard practices and techniques to solve complex interrelated problems; skill, judgment, resourcefulness, originality, and ability to foresee the impact of changing technology.</li><li>Ability to communicate effectively both orally and in writing, or order to product highly technical reports, position papers, and briefings, resolve conflicts based on mature judgment and experience, effectively negotiate complex issues, and maintain good working relationships. </li></ul>For US-based roles only: the anticipated hiring base salary range for this position is $130,000 to $160,000, depending on factors such as experience, education, level, skills, and location. This range is based on a full-time position. In addition to base salary, this role is eligible for incentive compensation. Moody’s also offers a competitive benefits package, including not but limited to medical, dental, vision, parental leave, paid time off, a 401(k) plan with employee and company contribution opportunities, life, disability, and accident insurance, a discounted employee stock purchase plan, and tuition reimbursement. Moody’s is an equal opportunity employer. All qualified applicants will receive consideration for employment without regard to race, color, sex, gender, age, religion, national origin, citizen status, marital status, physical or mental disability, military or veteran status, sexual orientation, gender identity, gender expression, genetic information, or any other characteristic protected by law. Moody’s also provides reasonable accommodation to qualified individuals with disabilities or based on a sincerely held religious belief in accordance with applicable laws. If you need to inquire about a reasonable accommodation, or need assistance with completing the application process, please email accommodations@moodys.com. This contact information is for accommodation requests only, and cannot be used to inquire about the status of applications. For San Francisco positions, qualified applicants with criminal histories will be considered for employment consistent with the requirements of the San Francisco Fair Chance Ordinance. This position may be considered a promotional opportunity, pursuant to the Colorado Equal Pay for Equal Work Act. Click here to view our full EEO policy statement. Click here for more information on your EEO rights under the law. Click here to view our Pay Transparency Nondiscrimination statement. Candidates for Moody's Corporation may be asked to disclose securities holdings pursuant to Moody’s Policy for Securities Trading and the requirements of the position. Employment is contingent upon compliance with the Policy, including remediation of positions in those holdings as necessary. For more information on the Securities Trading Program, please refer to the STP Quick Reference guide on ComplianceNet Please note: STP categories are assigned by the hiring teams and are subject to change over the course of an employee’s tenure with Moody’s.</div></div>
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Moody'S Analytics Interview Questions

Moody'S Analytics Interview Guides

Moody'S Analytics Interview Questions

Moody'S Analytics Salaries by Position

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