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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

In an A/B test, how can you check if assignment to the various buckets was truly random?

In an A/B test, which of the following is a common method to determine if the assignment to the test groups was truly random?

In an A/B test, which of the following is a common method to determine if the assignment to the test groups was truly random?

Random Bucketing

Nesco Resource Salaries by Position

The Senior Software Developer is responsible for designing, developing, implementing, and maintaining software applications and tools. This person will work closely with cross-functional leaders to gather requirements and provide updates on project progress. The ideal candidate will have exceptional software design skills and experience working with a range of technologies to build robust and scalable solutions tailored for enterprise environments, particularly in manufacturing. Do you have the skills to fill this role Read the complete details below, and make your application today. Key Responsibilities <ul> <li>Collaborate with stakeholders to understand requirements and translate them into software solutions.</li> <li>Lead the design, development, and testing of software applications tailored to the needs of our manufacturing environment, utilizing C#, .NET, and other technologies.</li> <li>Write clean, efficient, and well-documented code following established coding standards and best practices.</li> <li>Debug and troubleshoot issues in existing software applications, providing timely resolutions and updates using tools like Visual Studio and Git.</li> <li>Identify opportunities for process improvement and automation within manufacturing workflows using automation scripting (e.g., PowerShell) and other development tools.</li> <li>Develop and deploy RESTful APIs and automation scripts to streamline repetitive tasks and increase operational efficiency.</li> <li>Lead system integration efforts, addressing challenges in raw material applications and shipping systems.</li> <li>Take ownership of high-level projects, such as system forecasting and shipping system updates, ensuring effective communication and collaboration with external stakeholders.</li> <li>Prototype and develop long-term strategic projects with a focus on modularity and scalability.</li> <li>Maintain comprehensive documentation for projects, including system architecture diagrams created in Visio, ensuring they align with broader organizational strategy.</li> <li>Provide technical leadership in the development of cloud-based applications and DevOps processes to enhance system performance and reliability.</li> <li>Mentor junior developers and participate in performance reviews, contributing to a culture of continuous improvement and development.</li></ul> Technologies & Tools <ul> <li>Programming Languages: C#, .NET, JavaScript, Python (or similar backend and frontend languages).</li> <li>Frameworks: ASP.NET Core, MVC, Entity Framework, or other .NET frameworks.</li> <li>Databases: Microsoft SQL Server, MySQL, or similar relational databases; proficiency in writing SQL queries and managing large datasets.</li> <li>API Development: RESTful API design, development, and integration.</li> <li>Version Control: Git or similar version control systems for code management and team collaboration.</li> <li>Development Tools: IDEs like Visual Studio, JetBrains Rider, or equivalent.</li> <li>DevOps: Familiarity with CI/CD pipelines, Docker, Kubernetes, and cloud platforms like Azure for deploying and managing software.</li> <li>Reporting Tools: Experience with SQL Server Reporting Services (SSRS) or similar tools for generating reports and dashboards.</li> <li>System Visualization: Expertise in Visio or similar tools for documenting system architecture and workflows.</li> <li>EDI Systems: Knowledge of Electronic Data Interchange (EDI) systems, particularly in managing order entry and processing.</li> <li>Automation: Ability to leverage code, develop scripts, and use tools to automate tasks and streamline processes.</li></ul> Qualifications <ul> <li>Bachelor's degree in Computer Science, Engineering, Information Technology, or a related field.</li> <li>Over 5 years of hands-on experience in software development, with a proven track record of delivering high-quality, scalable solutions.</li> <li>Strong understanding of .NET development and proficiency with relevant tools and frameworks.</li> <li>Business systems integrations, including MRP, Logistics, WMS, and enterprise resource planning (ERP) products.</li> <li>Experience in cloud computing, API development, and database management (e.g., SQL Server).</li> <li>Familiarity with Visio for creating and maintaining system architecture diagrams.</li> <li>Leadership in project rollouts, including piloting features and working with external vendors to deploy systems to production.</li> <li>Strong analytical and problem-solving skills, with the ability to work independently to resolve technical issues.</li> <li>Excellent communication and interpersonal skills, with the ability to collaborate effectively in cross-functional teams.</li> <li>Eagerness to learn and engage with manufacturing processes and technologies.</li> <li>Prior experience in software development for manufacturing, ERP, or related fields is a plus.</li></ul> Nesco Resource offers a comprehensive benefits package for our associates, which includes a MEC (Minimum Essential Coverage) plan that encompasses Medical, Vision, Dental, 401K, and EAP (Employee Assistance Program) services. Nesco Resource provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state, or local laws.

Hybrid: in office 3 days per week Requirements •Bachelor's Degree •General knowledge of financial markets and investment products, specifically Equities, Options, and Fixed Income •Excellent written and verbal communication skills •Self-motivated with a high degree of attention to detail •Ability to adapt in fast paced environment with focus on innovation and flexibility •Efficient time management skills and ability to prioritize competing urgent tasks •Team player with the ability to work effectively in a team or independently •Ability to quickly learn and apply knowledge •Demonstrated relationship building skills with stakeholders, peers, and all levels of management •Strong reasoning and problem-solving skills •Ability to think and act like an owner •Proficiency in Microsoft Excel, VB plus Operations is one of the largest divisions in the firm and has diverse responsibilities, including correctly settling and recording millions of transactions per day, identifying and mitigating all operational risks, developing strong client relationships and partnering with technology to realize the full potential of IT and e-solutions. Throughout, the Operations department continually seeks ways to improve while actively supporting the development of new businesses, structures and markets. Global Wealth Management Operations provides brokerage, investment and financial services to hundreds of thousands of individual investors. We apply our expertise in serving institutional clients to create new opportunities for people to achieve their personal financial goals. Brokerage has one of the largest retail brokerage networks, with numerous worldwide representatives and retail locations. Our services are tailored to each client's investment objectives, risk tolerance, and financial needs. Products include mutual funds, stocks, bonds, and alternative investments where appropriate, as well as banking, mortgages, insurance and annuities. The Fixed Income and Service team (FITSS) is responsible for providing direct operational and client service support across the full trade lifecycle of the Fixed Income and Precious Metal order process. This role entails heavy interaction with financial advisors, trading desks, and sales. The FITSS Associate would be responsible for the day-to-day support of the trade lifecycle, including order entry exception management, trade adjustments, reconciliation and Precious Metals Operations. The team provides operational coverage to the trading, underwriting and structuring of securities executed in Fixed Income. This includes the trade capture, reconciliation, documentation and settlement of proprietary and liquidity transactions executed by various trading desks. The essential focus of this team is to ensure all operational risks are recognized and managed and that internal controls are complete and operating effectively. Nesco Resource offers a comprehensive benefits package for our associates, which includes a MEC (Minimum Essential Coverage) plan that encompasses Medical, Vision, Dental, 401K, and EAP (Employee Assistance Program) services. Nesco Resource provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state, or local laws.

Join Our Team as a Senior Data Engineer! Are you passionate about data engineering and ready to make an impact? We’re looking for a Senior Data Engineer who will play a pivotal role in shaping our next-generation cloud data analytics platform. If you have a knack for data integration, performance tuning, and a desire to drive organizational growth, we want to hear from you! What You Will Do: <ul><li>Co-architect Innovative Solutions: Collaborate with your team to design and implement a cutting-edge cloud data analytics platform that meets our evolving business needs.</li><li>Enhance Data Operations: Support and improve our data-ops practices, ensuring our data solutions are efficient and effective.</li><li>Monitor and Maintain Systems: Keep an eye on the health of our data solutions and ensure they deliver high performance and reliability.</li><li>Engage with Stakeholders: Build positive relationships with clients and internal teams, understanding their goals to propose technology solutions that drive success.</li><li>Collaborate and Innovate: Work in an agile environment with engineers, product managers, and analysts to create creative solutions that benefit the organization.</li><li>Guide Standards and Governance: Define the best practices for data architecture, platform architecture, and data quality to align with our organizational goals.</li></ul> What You Need to Succeed: Education: Bachelor’s degree in computer engineering, computer science, data science, or a related field. Experience: <ul><li>At least 2 years designing and implementing data warehouses in Snowflake.</li><li>A minimum of 8 years in data modeling, architecture, and engineering.</li><li>Proficiency in data transformation using DBT and familiarity with data quality products such as Monte Carlo or BigEye.</li><li>Skilled in Azure DevOps and experienced with software development methodologies (SDLC, Agile, SCRUM).</li></ul> Technical Skills: <ul><li>Knowledge of data warehouse design patterns (star schema, data vault) and building high-performance data pipelines.</li><li>Proficient in SQL and Python with an understanding of RESTful APIs and current data engineering trends.</li></ul> Soft Skills: <ul><li>Excellent communication and listening skills to facilitate technology evaluations and achieve consensus among diverse teams.</li><li>Strong ability to manage multiple priorities while driving continuous improvement.</li></ul> Nice to Have: <ul><li>Experience in delivering end-to-end data analytics platforms using modern data stack components.</li><li>Familiarity with AI/ML technologies.</li><li>Certifications such as SnowPro Advanced or DBT Analytical Engineer.</li></ul> We offer: <ul><li>Competitive Salary: Your skills and experience deserve to be recognized.</li><li>Comprehensive Benefits Package: Including health insurance, 401k, and generous PTO.</li><li>Wellness Initiatives: Health & Wellness Days and Paid Volunteer Time Off to support your personal well-being.</li><li>Flexible Work Environment: Enjoy a hybrid work schedule that promotes work-life balance.</li></ul> Apply now and be a part of a dynamic team dedicated to pushing the boundaries of data engineering! Nesco Resource provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state, or local laws

POSITION SUMMARY: Estate & Inheritor Services is a specialized team within Brokerage designed to assist with the processing of client accounts during the Inheritance process. The Estate & Inheritor Services Specialist will be responsible for managing the transition of assets for individual clients by serving as a Subject Matter Expert for Brokerage Wealth Management Clients, Financial Advisors, Client Service Associates and/or Branch Management to facilitate inheritance and legacy transfers. Additionally, the Associate will work closely with branches and other internal departments, provide support through various internal applications, and process paperwork in a virtual branch environment. DUTIES and RESPONSIBILITIES: •Providing dedicated one-on-one support for the client throughout the inheritance process leveraging effective relationship management skills •Proactively communicating with clients by phone and or email to provide a high level of service, transparency, and empathy to clients and beneficiaries. •Process & follow up client service requests to ensure completion in a timely manner •Set appropriate expectations with clients and beneficiaries for requests, in line with internal Service Level Agreements, and ensure consistent follow-up •Provide world class customer service to both internal and external clients in all interactions •Research and resolve problems with both internal and external clients accurately and in a timely manner •Leverage Brokerage systems and ensure all case interactions are appropriately entered and documented •Actively manage, monitor, and document daily case load by utilizing various technology resources •Apply Firm verification policies for all clients to avoid identity theft and fraudulent activity •Keep current on SEC/Client, Compliance and Firm guidelines and apply to processing and all interactions to ensure risk mitigation •Other ad hoc duties as assigned Additional requirements may include: Series 7 and 66 required (or 63 & 65) EDUCATION and or EXPERIENCE: •College degree preferred •3-4 years financial services industry experience preferred including client service interactions, and knowledge of estates, trusts, and retirement plans, account opening and asset distribution processes Knowledge/Skills: •Basic clerical and administrative skills •Effective written and verbal communication skills •Excellent interpersonal and client service skills •Organizational skills, attention to detail and excellent follow up skills •Ability to research and resolve problems and service inquiries and escalate when appropriate •Ability to efficiently handle a high volume of requests in a fast paced environment •Strong computer skills including Microsoft Suite •Basic knowledge of Brokerage systems and procedures •Be self-motivated and able to work in a strong team and high activity environment. Nesco Resource offers a comprehensive benefits package for our associates, which includes a MEC (Minimum Essential Coverage) plan that encompasses Medical, Vision, Dental, 401K, and EAP (Employee Assistance Program) services. Nesco Resource provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state, or local laws.

Join Our Team as a Senior Data Engineer! Are you passionate about data engineering and ready to make an impact? We're looking for a Senior Data Engineer who will play a pivotal role in shaping our next-generation cloud data analytics platform. If you have a knack for data integration, performance tuning, and a desire to drive organizational growth, we want to hear from you! What You Will Do: <ul> <li>Co-architect Innovative Solutions: Collaborate with your team to design and implement a cutting-edge cloud data analytics platform that meets our evolving business needs.</li> <li>Enhance Data Operations: Support and improve our data-ops practices, ensuring our data solutions are efficient and effective.</li> <li>Monitor and Maintain Systems: Keep an eye on the health of our data solutions and ensure they deliver high performance and reliability.</li> <li>Engage with Stakeholders: Build positive relationships with clients and internal teams, understanding their goals to propose technology solutions that drive success.</li> <li>Collaborate and Innovate: Work in an agile environment with engineers, product managers, and analysts to create creative solutions that benefit the organization.</li> <li>Guide Standards and Governance: Define the best practices for data architecture, platform architecture, and data quality to align with our organizational goals.</li></ul>What You Need to Succeed:<ul> <li>Education: Bachelor's degree in computer engineering, computer science, data science, or a related field.</li> <li>Experience: <ul> <li>At least 2 years designing and implementing data warehouses in Snowflake.</li> <li>A minimum of 8 years in data modeling, architecture, and engineering.</li> <li>Proficiency in data transformation using DBT and familiarity with data quality products such as Monte Carlo or BigEye.</li> <li>Skilled in Azure DevOps and experienced with software development methodologies (SDLC, Agile, SCRUM).</li> </ul> </li> <li>Technical Skills: <ul> <li>Knowledge of data warehouse design patterns (star schema, data vault) and building high-performance data pipelines.</li> <li>Proficient in SQL and Python with an understanding of RESTful APIs and current data engineering trends.</li> </ul> </li> <li>Soft Skills: <ul> <li>Excellent communication and listening skills to facilitate technology evaluations and achieve consensus among diverse teams.</li> <li>Strong ability to manage multiple priorities while driving continuous improvement.</li> </ul> </li></ul>Nice to Have:<ul> <li>Experience in delivering end-to-end data analytics platforms using modern data stack components.</li> <li>Familiarity with AI/ML technologies.</li> <li>Certifications such as SnowPro Advanced or DBT Analytical Engineer.</li></ul>Why Join Us? We believe in investing in our people. We offer:<ul> <li>Competitive Salary: Your skills and experience deserve to be recognized.</li> <li>Comprehensive Benefits Package: Including health insurance, 401k, and generous PTO.</li> <li>Wellness Initiatives: Health & Wellness Days and Paid Volunteer Time Off to support your personal well-being.</li> <li>Flexible Work Environment: Enjoy a hybrid work schedule that promotes work-life balance.</li></ul> Apply now and be a part of a dynamic team dedicated to pushing the boundaries of data engineering! PRO113 Nesco Resource offers a comprehensive benefits package for our associates, which includes a MEC (Minimum Essential Coverage) plan that encompasses Medical, Vision, Dental, 401K, and EAP (Employee Assistance Program) services. Nesco Resource provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state, or local laws.

Annuity & Insurance Operations Service Associate Brokerage is a leading global financial services firm providing a wide range of investment banking, securities, investment management and wealth management services. The Firm's employees serve clients worldwide including corporations, governments and individuals from more than 1,200 offices in 43 countries. As a market leader, the talent and passion of our people is critical to our success. Together, we share a common set of values by always keeping the client's interest first and giving back through investing in the future of our communities and our Firm. We encourage our employees to act with integrity, while leading with exceptional ideas. Brokerage can provide a superior foundation for building a professional career - a place for people to learn, to achieve and grow. A philosophy that balances personal lifestyles, perspectives and needs is an important part of our culture. Our DNA, our culture and our history are rooted in serving our clients. Team Profile: The Annuity & Insurance Operations group within the Brokerage Service Network (MSSN) provides operational and customer service support to Brokerage financial advisors and branch employees. The team responds to a variety of inquiries related to insurance licensing, product training and education, order entry support, and insurance policy maintenance. The team is responsible for providing a high level of service in supporting a wide range of systems, policies, and procedures. Primary Responsibilities: -Establish and maintain effective relationships in order to deliver world class service to our clients. -Handle inquiries by phone and cases from financial advisors and branch employees related to Insurance Licensing, Order Desk, and Policy Services. -Utilize online resources and tools to provide information and resolve issues while following established guidelines for service quality and one-call resolution. -Follow established procedures to route processing requests to the appropriate processing teams and to escalate inquiries for further research. -Meet team and department service goals established by MSSN management. Skills required: -Minimum 2 years' experience with at least 6-12 months experience in a call center or with phone interactions -Excellent listening and written and verbal communication skills -Desire to learn the insurance operations business and invest time and experience to develop expertise -Ability to learn quickly and apply knowledge to new situations -Ability to establish and maintain positive client relationships -Ability to diagnose and solve problems creatively -Ability to recognize and diffuse potential issues and/or difficult interactions -Ability to multitask Nesco Resource offers a comprehensive benefits package for our associates, which includes a MEC (Minimum Essential Coverage) plan that encompasses Medical, Vision, Dental, 401K, and EAP (Employee Assistance Program) services. Nesco Resource provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state, or local laws.

The Senior Software Developer is responsible for designing, developing, implementing, and maintaining software applications and tools. This person will work closely with cross-functional leaders to gather requirements and provide updates on project progress. The ideal candidate will have exceptional software design skills and experience working with a range of technologies to build robust and scalable solutions tailored for enterprise environments, particularly in manufacturing. Key Responsibilities <ul> <li>Collaborate with stakeholders to understand requirements and translate them into software solutions.</li> <li>Lead the design, development, and testing of software applications tailored to the needs of our manufacturing environment, utilizing C#, .NET, and other technologies.</li> <li>Write clean, efficient, and well-documented code following established coding standards and best practices.</li> <li>Debug and troubleshoot issues in existing software applications, providing timely resolutions and updates using tools like Visual Studio and Git.</li> <li>Identify opportunities for process improvement and automation within manufacturing workflows using automation scripting (e.g., PowerShell) and other development tools.</li> <li>Develop and deploy RESTful APIs and automation scripts to streamline repetitive tasks and increase operational efficiency.</li> <li>Lead system integration efforts, addressing challenges in raw material applications and shipping systems.</li> <li>Take ownership of high-level projects, such as system forecasting and shipping system updates, ensuring effective communication and collaboration with external stakeholders.</li> <li>Prototype and develop long-term strategic projects with a focus on modularity and scalability.</li> <li>Maintain comprehensive documentation for projects, including system architecture diagrams created in Visio, ensuring they align with broader organizational strategy.</li> <li>Provide technical leadership in the development of cloud-based applications and DevOps processes to enhance system performance and reliability.</li> <li>Mentor junior developers and participate in performance reviews, contributing to a culture of continuous improvement and development.</li></ul> Technologies & Tools <ul> <li>Programming Languages: C#, .NET, JavaScript, Python (or similar backend and frontend languages).</li> <li>Frameworks: ASP.NET Core, MVC, Entity Framework, or other .NET frameworks.</li> <li>Databases: Microsoft SQL Server, MySQL, or similar relational databases; proficiency in writing SQL queries and managing large datasets.</li> <li>API Development: RESTful API design, development, and integration.</li> <li>Version Control: Git or similar version control systems for code management and team collaboration.</li> <li>Development Tools: IDEs like Visual Studio, JetBrains Rider, or equivalent.</li> <li>DevOps: Familiarity with CI/CD pipelines, Docker, Kubernetes, and cloud platforms like Azure for deploying and managing software.</li> <li>Reporting Tools: Experience with SQL Server Reporting Services (SSRS) or similar tools for generating reports and dashboards.</li> <li>System Visualization: Expertise in Visio or similar tools for documenting system architecture and workflows.</li> <li>EDI Systems: Knowledge of Electronic Data Interchange (EDI) systems, particularly in managing order entry and processing.</li> <li>Automation: Ability to leverage code, develop scripts, and use tools to automate tasks and streamline processes.</li></ul> Qualifications <ul> <li>Bachelor's degree in Computer Science, Engineering, Information Technology, or a related field.</li> <li>Over 5 years of hands-on experience in software development, with a proven track record of delivering high-quality, scalable solutions.</li> <li>Strong understanding of .NET development and proficiency with relevant tools and frameworks.</li> <li>Business systems integrations, including MRP, Logistics, WMS, and enterprise resource planning (ERP) products.</li> <li>Experience in cloud computing, API development, and database management (e.g., SQL Server).</li> <li>Familiarity with Visio for creating and maintaining system architecture diagrams.</li> <li>Leadership in project rollouts, including piloting features and working with external vendors to deploy systems to production.</li> <li>Strong analytical and problem-solving skills, with the ability to work independently to resolve technical issues.</li> <li>Excellent communication and interpersonal skills, with the ability to collaborate effectively in cross-functional teams.</li> <li>Eagerness to learn and engage with manufacturing processes and technologies.</li> <li>Prior experience in software development for manufacturing, ERP, or related fields is a plus.</li></ul> Nesco Resource offers a comprehensive benefits package for our associates, which includes a MEC (Minimum Essential Coverage) plan that encompasses Medical, Vision, Dental, 401K, and EAP (Employee Assistance Program) services. Nesco Resource provides equal employment opportunities to all employees and applicants for employment and prohibits discrimination and harassment of any type without regard to race, color, religion, age, sex, national origin, disability status, genetics, protected veteran status, sexual orientation, gender identity or expression, or any other characteristic protected by federal, state, or local laws.

Nesco Resource Interview Questions

Nesco Resource Interview Guides

Nesco Resource Interview Questions

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