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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

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?

Rose International Salaries by Position

Date Posted: 11/14/2024Hiring Organization: Rose InternationalPosition Number: 474348Job Title: Business AnalystJob Location: Oakland, CA, USA, 94612Work Model: HybridEmployment Type: TemporaryEstimated Duration (In months): 7Min Hourly Rate($): 50.00Max Hourly Rate($): 55.00Must Have Skills/Attributes: Analysis, Change Management, MS Office, Project Management Job Description***Only qualified Business Analyst candidates located near the Oakland, CA area to be considered due to the position requiring an onsite presence*** Minimum Qualifications:• Bachelor’s degree in business management, project management or other related fields, and or equivalent work experience Desired Qualifications:• Working knowledge of CC&B, FAS, MIB, SAP and OIS• Demonstrated experience in metrics development and deployment• Experience with formalized Organizational Change Management and with change stabilization• Experience with Stakeholder Analysis and Stakeholder Engagement• Experience with deployment flow charts and/or &swim lane; tools for visualizing procedures and roles• Expert-level MS Office skills including Word, Excel, PowerPoint and MS Project• Utility industry experience TOP THINGS LOOKING FOR:• Contract management including Terms and Conditions negotiations• Skill sets to track financials and prepare presentation materials• Prepare GRC paperwork and other LEAN documents for tracking progress Business Analyst will have the following tasks and roles below:• Up to 15% travel required to attend monthly meetings and meetings at San Jose Cinnabar and Edenvale• Own TIP documentation and track progress including Catchback plans as needed• Update TIPs and CIIMS regularly• TIP and A3 in CIIMS with updated assumptions, findings, and financial analysis• Conduct financial analysis and draft work papers required for 2027 GRC• Coordinate with Gas and Electric stakeholders on operational efficiencies based on inventory visibility• Quantify benefits and report out monthly• Coordinate with vendors, Sourcing and Law to revise Terms and Conditions to execute PO• Coordinate the creation of PR and PO• Confirm Goods Receipt• Track project spending, monthly financials, POs, and timing of material delivery• Attend financials meetings and report out on budget forecast, realized savings, actual costs monthly• Prepare leadership presentation material and accompanying analysis• Prepare process maps to document new processes or to update existing processes• Participate in weekly Visual Stream Mapping meeting to provide progress updates• Draft 5MM tailboards, email updates and publication of various documents• Attend various meetings with SMEs, LOB engineers and other internal stakeholders as needed <ul><li>**Only those lawfully authorized to work in the designated country associated with the position will be considered.**</li></ul> <ul><li>**Please note that all Position start dates and duration are estimates and may be reduced or lengthened based upon a client’s business needs and requirements.**</li></ul> Benefits:For information and details on employment benefits offered with this position, please visit <a>here</a>. Should you have any questions/concerns, please contact our HR Department via our secure <a>website</a>.California Pay Equity:For information and details on pay equity laws in California, please visit the State of California Department of Industrial Relations' website <a>here</a>.Rose International is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, age, sex, sexual orientation, gender (expression or identity), national origin, arrest and conviction records, disability, veteran status or any other characteristic protected by law. Positions located in San Francisco and Los Angeles, California will be administered in accordance with their respective Fair Chance Ordinances.If you need assistance in completing this application, or during any phase of the application, interview, hiring, or employment process, whether due to a disability or otherwise, <a>please contact our HR Department</a>.Rose International has an official agreement (ID #132522), effective June 30, 2008, with the U.S. Department of Homeland Security, U.S. Citizenship and Immigration Services, Employment Verification Program (E-Verify). (Posting required by OCGA 13/10-91.).

Date Posted: 11/14/2024Hiring Organization: Rose InternationalPosition Number: 474365Job Title: Business Analyst - Project LeadJob Location: Columbia, SC, USA, 29222Work Model: OnsiteEmployment Type: TemporaryEstimated Duration (In months): 13Min Hourly Rate($): 60.00Max Hourly Rate($): 65.00Must Have Skills/Attributes: Documentation, SSP, Technical Writing Job DescriptionRequired Education/Certifications:• Bachelor’s or Associate degree in English, journalism, business administration, or similar discipline Preferred Education/Certifications:• An equivalent combination of education and at least five (5) years of technical writing experience may be considered Required Skills/ Experience:• Technical writing: 2 - 4 Years• Writing Advanced Planning Documents: 1 - 2 Years• Ability to deal effectively with the needs of technical peers, technical and user management, users, vendors, and staff members, and to communicate clearly and effectively in spoken and written form: 2 - 4 Years• Ability to develop, communicate and present project documentation and Reports: 4 Years• IT Security: 2 - 4 Years• MARS-E: 1 - 2 Years• SSP: 1 - 2 Years• Writing Plan of action and Milestones (POA&M): 1 - 2 Years• Microsoft Office Suite: 2 - 4 Years• Technical writing experience related to Federal Compliance documentation including answering security audit controls in writing and MARS-E documentation requirements: 2 - 4 Years• eGRC solutions: 1 - 2 Years REQUIRED SKILLS:• 5+ years of technical writing experience in positions requiring the development of structured written materials and visual aids• 2+ years of facilitating corrective activities to mitigate risk• Ability to communicate effectively in English, both verbally and in writing• Ability to interact with internal and external vendors, project team members, management, and agency departments and to build relationships and use facilitation skills with both technical and non-technical personnel• Ability to write, edit, and prepare technical information for both technical and non-technical personnel using appropriate and illustrative graphical elements• Ability to collaborate and coordinate with multiple teams and vendors• Ability to work independently and as a member of a team• Ability to multitask and prioritize tasks effectively in order to meet deadlines• Must possess advanced skills in Microsoft Office (Word, Excel, PowerPoint, Visio, Project, etc.) to include working with templates and style guidelines for branding consistency• Keen attention to detail while maintaining the ability to see the big picture• Ability to absorb and retain complex processes• Ability to accept changes and constructive criticism in a fast turn-around environment PREFERRED SKILLS• Prior experience in analysis, design, implementation, and modification of policies, standards, and procedures• Experience with CMS MARS-E 2.2 or other NIST Risk Management Framework (RMF) compliant programs• Experience in organizing information in a way that is appropriate for technical explanations without losing sight of the needs and aptitude of the audience• 2+ years of documented IT related work experience• Experience with an EGRC tool Daily Duties / Responsibilities:The BA - Project Lead will work with various internal and external teams including agency leadership, Project Directors/Project Managers, Technical Directors/Developers, Business and Technology Stakeholders/Subject Matter Experts (SMEs), and other agency staff to create Information Security related business and technical documents and artifacts that will be used both internally and externally by CLIENT, executive management, agency staff, vendors, and federal and state regulatory bodies.We are looking for candidates who are highly organized, can work independently in a fast-paced environment, and produce multiple quality deliverables with varying deadlines.Candidates should be self-starters and creative problem solvers and have the flexibility to learn new products and technologies quickly. Essential Responsibilities:• Coordinate the independent analysis, design, implementation, and modification of information security policies, standards, and procedures to meet compliance efforts• Facilitates corrective activities to mitigate risk by assisting the CLIENT compliance team with processes and documentation• Maintains the GRC library and artifacts for federal and state regulatory audits and assessments• Is responsible for CLIENT administrative policies and documentation• Works with technical staff and business stakeholders to create deliverables and artifacts that are intended for audiences with various levels of technical knowledge• Involves creating, sharing, revising, and publishing CLIENT policies and procedures• Creates artifacts and supporting documentation and uses writing and communication skills to make complex information easier to digest• Serves as a liaison between the business community and the IT organization in order to provide technical solutions to meet user needs• Actively scribe and facilitate scope-related CLIENT meetings. Needs to be able to listen, summarize, and capture the essential elements for the project meeting minutes• Other duties as assigned SCOPE OF THE PROJECT:CLIENT, is required to develop and maintain Information Security policies, standards, procedural documents, and related artifacts to ensure compliance with Federal, State, and agency requirements.CLIENT is seeking a Business Analyst – Project Lead to assist with these tasks and to ensure that documentation is properly vetted to meet the needs of both the business areas and security requirements.This position will also coordinate the Plans of Action and Milestones (POA&M) processes and documentation. Start Date: 12/10/2024Location: COLUMBIA, SCInterview: In-person or video for initial interview. In-person for secondary interview(s) <ul><li>**Only those lawfully authorized to work in the designated country associated with the position will be considered.**</li></ul> <ul><li>**Please note that all Position start dates and duration are estimates and may be reduced or lengthened based upon a client’s business needs and requirements.**</li></ul> Benefits:For information and details on employment benefits offered with this position, please visit <a>here</a>. Should you have any questions/concerns, please contact our HR Department via our secure <a>website</a>.California Pay Equity:For information and details on pay equity laws in California, please visit the State of California Department of Industrial Relations' website <a>here</a>.Rose International is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, age, sex, sexual orientation, gender (expression or identity), national origin, arrest and conviction records, disability, veteran status or any other characteristic protected by law. Positions located in San Francisco and Los Angeles, California will be administered in accordance with their respective Fair Chance Ordinances.If you need assistance in completing this application, or during any phase of the application, interview, hiring, or employment process, whether due to a disability or otherwise, <a>please contact our HR Department</a>.Rose International has an official agreement (ID #132522), effective June 30, 2008, with the U.S. Department of Homeland Security, U.S. Citizenship and Immigration Services, Employment Verification Program (E-Verify). (Posting required by OCGA 13/10-91.).

Date Posted: 11/08/2024Hiring Organization: Rose InternationalPosition Number: 474093Job Title: Data EngineerJob Location: Baton Rouge, LA, USA, 70801Work Model: HybridEmployment Type: TemporaryEstimated Duration (In months): 25Min Hourly Rate($): 60.00Max Hourly Rate($): 65.00Must Have Skills/Attributes: Apache, Data Engineer, ETL, Hadoop, Kafka, PostgreSQL, Python Job Description***Only qualified Data Engineer candidates located near the Baton Rouge, LA area to be considered due to the position requiring an onsite presence*** Required Education:• Bachelor’s degree in computer science, Information Technology, or a related field Required Qualification/Skills/Experience:• Minimum 5 years of experience as a Backend Data Engineer or in a similar role and strong understanding of ETL processes and data warehousing concepts• Proven experience with Python and related data engineering libraries (e.g., pandas, NumPy, Spark) and hands-on experience with Apache Airflow for managing data pipelines and workflows• Proficiency in programming languages commonly used in data engineering, such as Python, Java, Scala, or SQL. Resource must be able to implement data automations within existing frameworks as opposed to writing one off scripts• Experience with big data technologies and frameworks like Hadoop, Spark, Kafka, and Flink• Strong understanding of database systems, including relational databases (e.g., MySQL, PostgreSQL) and NoSQL databases (e.g., MongoDB, Cassandra)• Experience regarding engineering best practices such as source control, automated testing, continuous integration and deployment, and peer review• Excellent verbal and written communication skills, including the ability to convey technical concepts to non-technical partners effectively• Flexibility to adapt to evolving project requirements and priorities• Outstanding interpersonal and teamwork skills; and the ability to develop productive working relationships with colleagues and partners• Experience working in a virtual environment with remote partners and teams• Proficiency in Microsoft Office Preferred Qualification/Skills/Experience:• Experience with cloud computing platforms• Familiarity with agile development methodologies, software design patterns, and best practices• Strong analytical thinking and problem-solving abilities Job Duties:• Create and manage the systems and pipelines that enable efficient and reliable flow of data, including ingestion, processing, and storage• Collect data from various sources, transforming and cleaning it to ensure accuracy and consistency• Load data into storage systems or data warehouses• Optimize data pipelines, infrastructure, and workflows for performance and scalability• Monitor data pipelines and systems for performance issues, errors, and anomalies, and implement solutions to address them• Implement security measures to protect sensitive information• Collaborate with data scientists, analysts, and other partners to understand their data needs and requirements, and to ensure that the data infrastructure supports the organization's goals and objectives• Collaborate with cross-functional teams to understand data requirements and design scalable solutions that meet business needs• Implement and maintain ETL processes to ensure the accuracy, completeness, and consistency of data• Design and manage data storage systems, including relational databases, NoSQL databases, and data warehouses• Knowledgeable about industry trends, best practices, and emerging technologies in data engineering, and incorporating the trends into the organization's data infrastructure• Provide technical guidance to other staff• Communicate effectively with partners at all levels of the organization to gather requirements, provide updates, and present findings **Only those lawfully authorized to work in the designated country associated with the position will be considered.** **Please note that all Position start dates and duration are estimates and may be reduced or lengthened based upon a client’s business needs and requirements.** Benefits:For information and details on employment benefits offered with this position, please visit <a>here</a>. Should you have any questions/concerns, please contact our HR Department via our secure <a>website</a>.California Pay Equity:For information and details on pay equity laws in California, please visit the State of California Department of Industrial Relations' website <a>here</a>.Rose International is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, age, sex, sexual orientation, gender (expression or identity), national origin, arrest and conviction records, disability, veteran status or any other characteristic protected by law. Positions located in San Francisco and Los Angeles, California will be administered in accordance with their respective Fair Chance Ordinances.If you need assistance in completing this application, or during any phase of the application, interview, hiring, or employment process, whether due to a disability or otherwise, <a>please contact our HR Department</a>.Rose International has an official agreement (ID #132522), effective June 30, 2008, with the U.S. Department of Homeland Security, U.S. Citizenship and Immigration Services, Employment Verification Program (E-Verify). (Posting required by OCGA 13/10-91.).

Date Posted: 11/04/2024Hiring Organization: Rose InternationalPosition Number: 473797Job Title: Privacy Design Business AnalystJob Location: Atlanta, GA, USA, 30303Work Model: HybridShift:Monday thru Friday8:00am to 5:00pm; 1 day remote a weekEmployment Type: Temp to HireEstimated Duration (In months): 14Min Hourly Rate($): 65.00Max Hourly Rate($): 71.00Must Have Skills/Attributes: Banking/Financial, Business Analysis, Data Privacy, Project Management Job Description***Only qualified Privacy Design Business Analyst candidates located near the Atlanta, GA or Charlotte, NC area to be considered due to the position requiring an onsite presence*** Required Education:• Bachelor’s degree required Required Qualifications:• At least 7 years working in data privacy at a financial institution, fintech or insurance company• At least 7 years as a business analyst.• Experience leading a project from beginning to end• Previous project manager experience Responsibilities:• Position requires someone with a specific skill set in privacy risk• Skill set does not drive position requirements, but rather the position requires someone with a specific skill set in privacy risk• Leading project from beginning to end• Compliance program and control design in order to be successful in the role.• Communicating with senior management on project <ul><li>**Only those lawfully authorized to work in the designated country associated with the position will be considered.**</li></ul> <ul><li>**Please note that all Position start dates and duration are estimates and may be reduced or lengthened based upon a client’s business needs and requirements.**</li></ul> Benefits:For information and details on employment benefits offered with this position, please visit <a>here</a>. Should you have any questions/concerns, please contact our HR Department via our secure <a>website</a>.California Pay Equity:For information and details on pay equity laws in California, please visit the State of California Department of Industrial Relations' website <a>here</a>.Rose International is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, age, sex, sexual orientation, gender (expression or identity), national origin, arrest and conviction records, disability, veteran status or any other characteristic protected by law. Positions located in San Francisco and Los Angeles, California will be administered in accordance with their respective Fair Chance Ordinances.If you need assistance in completing this application, or during any phase of the application, interview, hiring, or employment process, whether due to a disability or otherwise, <a>please contact our HR Department</a>.Rose International has an official agreement (ID #132522), effective June 30, 2008, with the U.S. Department of Homeland Security, U.S. Citizenship and Immigration Services, Employment Verification Program (E-Verify). (Posting required by OCGA 13/10-91.).

Date Posted: 11/01/2024Hiring Organization: Rose InternationalPosition Number: 473749Job Title: Business AnalystJob Location: Fredericksbg, VA, USA, 22405Work Model: HybridShift: Onsite 3 days a week or as neededEmployment Type: TemporaryEstimated Duration (In months): 7Min Hourly Rate($): 60.00Max Hourly Rate($): 61.00Must Have Skills/Attributes: Accounting, Budgeting, Business Analysis, Financial Analysis Job Description***Only qualified Business Analyst candidates located near the Fredericksburg, VA area to be considered due to the position requiring an onsite presence*** Required Skills:• Extensive experience in the use of the computers and software (Microsoft 365) applications. Excel pivot tables, complex spreadsheets, etc. (5 Years)• Extensive in financial analysis and forecasting and forecasting (5 Years)• Customer service to broad audiences, professionals, vendors, team members and executive staff (5 Years)• General knowledge of accounting practices and financial management (5 Years) Desired Skills:• Experience in performance metrics, measurements, methods and targets to promote financial accountability (3 Years)• Commonwealth of VA financial knowledge and applied experience (1 Years)• Experience with Cardinal Financial system (1 Years) Responsibilities:• Support of the fiscal, budgetary, and accounting operations for AMD• Plans, organizes, develops, maintains, and coordinates the development and implementation of fiscal operations, processes, policies and procedures for the MN program• Support development of the annual agency’s MN budget and reviews statewide expenditure and spend plan data• Will perform monthly program/project expense analysis and assist with the review and analysis of MN expenditures and budgets• Will be responsible for supporting executive decision making and presenting the financial aspects of projects to senior management. Requires understanding budgeting and accounting with the ability to analyze complex business problems and recommend solutions• Participate in the development and maintenance of performance metrics, measurements, methods, and targets to promote financial accountability, and assist in identifying performance improvement opportunities• Provide good customer service to internal team members & external customers, comprehensive analytical skills (Excel, MS Word), being an effective communicator, as well as being self-motivated and showing initiative while accomplishing the task at hand• Provide guidance and support to internal stakeholders on contract-related matters to ensure compliance with contract requirements, monitoring contractor performance and payment, resolved disputes and contractual issues, develop and manage relationships with external contractors and organize and manage contractual documents Business Analyst - Finance Experience Required - Long Term Position - 2 years or longer. ***In Person Interview Only*** <ul><li>**Only those lawfully authorized to work in the designated country associated with the position will be considered.**</li></ul> <ul><li>**Please note that all Position start dates and duration are estimates and may be reduced or lengthened based upon a client’s business needs and requirements.**</li></ul> Benefits:For information and details on employment benefits offered with this position, please visit <a>here</a>. Should you have any questions/concerns, please contact our HR Department via our secure <a>website</a>.California Pay Equity:For information and details on pay equity laws in California, please visit the State of California Department of Industrial Relations' website <a>here</a>.Rose International is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, age, sex, sexual orientation, gender (expression or identity), national origin, arrest and conviction records, disability, veteran status or any other characteristic protected by law. Positions located in San Francisco and Los Angeles, California will be administered in accordance with their respective Fair Chance Ordinances.If you need assistance in completing this application, or during any phase of the application, interview, hiring, or employment process, whether due to a disability or otherwise, <a>please contact our HR Department</a>.Rose International has an official agreement (ID #132522), effective June 30, 2008, with the U.S. Department of Homeland Security, U.S. Citizenship and Immigration Services, Employment Verification Program (E-Verify). (Posting required by OCGA 13/10-91.).

Must Have Skills/Attributes API
Implementation
Management
Oracle
Process
Project Management
Responsibilities *Only those lawfully authorized to work in the designated country associated with the position will be considered.
*Please note that all position start dates and duration are estimates and may be reduced or lengthened based upon a client's business needs and requirements.
The main function of a business analyst is to maintain vendor relationships, acting as a business analyst for non-IT projects or filling organizational roles above an administrative level, but below a management level.
Maintain all project management processes, including project goals, deadlines, metrics, and budget.
The business analyst usually reports to a project manager or director.
Coordinate communication between numerous internal and external teams, vendors, and partners.
Engage with partner and cross-functional teams to identify constraints, dependencies, and coordination areas to deliver features at high quality.
Identify resources needed and work closely with the team leads to maintain full visibility of multiple projects, ensuring resource gaps are addressed efficiently.
Setup, coordinate, and report goals, roadmaps, and strategy.
Ensure the members of their team are able to work at their highest potential and able to play to their strengths.
Drive continuous improvements and change management.
Implement technologies in production and warehousing shop floors.
Qualifications Experience leading projects.
Experience with project management tools.
Proactive problem solving with communication and collaborative skills.
Experience influencing and driving decision-making through fact-based analysis and rationale.
Experience prioritizing and multi-tasking in a fast-paced environment.
Verbal and written communication skills, attention to detail, customer service, and interpersonal skills.
Strong ability to work independently and manage one's time.
Strong knowledge of business and management principles involved in strategic planning, resource allocation, and production methods.
Strong ability to apply accounting and mathematical principles to work as needed.
Strong ability to analyze business trends and project future revenues and expenses.
Business Analyst IV TOP 3 must have hard skills: project management, process driving mindset, strong analytical skills.
GOOD TO HAVE: experience driving projects from concept to implementation, API/Webservices/EDI/Oracle technical knowledge; ability to translate operational needs to system needs and vice versa.
Benefits Min Hourly Rate ($): 65.00
Max Hourly Rate ($): 71.00
Date Posted: 01/13/2024
Hiring Organization: Rose International
Position Number: 456649
Job Title: Business Analyst IV
Job Location: Sunnyvale, CA, USA, 94086
Employment Type: Temporary
Estimated Duration (In months): 13

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