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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 you work for a social media company that has just done a launch in a new city. Looking at weekly metrics, you see a slow decrease in the average number of comments per user from January to March in this city.

The company has been consistently growing new users in the city from January to March.

What are some reasons why the average number of comments per user would be decreasing and what metrics would you look into?

What metric could be used to measure if active users are still engaging on the platform despite an overall decrease in the average number of comments per user?

What metric could be used to measure if active users are still engaging on the platform despite an overall decrease in the average number of comments per user?

Decreasing Comments

How would you investigate a decline in the average number of comments per user?

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

Irvine Technology Corporation Salaries by Position

Position: Sr. Business Data AnalystLocation: Long Beach, CAWork Model: Onsite/Hybrid (Onsite Monday - Thursday, and Remote on Fridays)Duration: 6 month contract to permanent full time hire (open to direct hire)Hourly Rate: 65/hr to 75/hrSalary: 125k to 140k + Excellent Benefits Program Must Have:Power Platform (Power Apps, Power Automate, Power BI etc.)Business, Data, and System analysis Responsibilities:<ul><li>Create databases and data marts using the Azure Data Analytics Platform, including Webhooks, Logic Apps, etc.</li><li>Create and publish custom reports, dashboards, analyses and measures that provide information that helps the business run more effectively.</li><li>Partner with internal and external IT resources to review data sets and develop integrations to combine databases into new data marts, Data Lakes, DataVerses and SQL databases that support BI reporting and analysis.</li><li>Write and optimize SQL queries to extract, manipulate, and analyze data.</li><li>Design, build and implement SSRS reports to meet business needs.</li><li>Automate the generation and distribution of Power BI solutions leveraging the M365 platform.</li><li>Partner with IT and operations team members to develop functional specifications for new solutions that optimize the trade-offs between functionality and development costs.</li><li>Cascade knowledge to business owners and end-users so they can easily consume reports, dashboards and analysis using Power BI, Microsoft Teams, SharePoint and the entire M365 suite.</li><li>Utilize the Microsoft Power Platform (Power Apps, Power Automate) to automate workflows and improve business processes.</li><li>Evaluate new technologies and formulate recommendations in support of a forward-looking IT strategy.</li><li>Familiar with data security and data governance practices within Purview and able to rollout and manage the corporate wide data environment.</li><li>Ensure data integrity and security by implementing best practices in data management.</li></ul> What Gets You The Job:<ul><li>3 or more years of relevant experience developing reporting and analysis solutions with Microsoft Power BI, including DAX and Power Query.</li><li>Proven experience developing solutions utilizing Microsoft SQL Server, Azure SQL Services, Data Lakes, Dataverse and SharePoint lists as data sources.</li><li>Expertise with one or more modern coding language, including: Python, SQL, Java Script, R, HTML/CSS, ASP.Net or other related programming languages is a plus.</li><li>Working knowledge of the Microsoft Power Platform /Power Apps and other low-code/no-code development platforms.</li><li>In-depth knowledge of Microsoft Teams and SharePoint Online.</li><li>Excellent verbal and written communications skills - a skilled business professional who communicates effectively with all levels of end-users and management.</li><li>Proficient in standard business software, including Outlook, Team, Excel, Word and PowerPoint.</li></ul> Please send your resume to Dave Lim, Senior Technical Recruiter for immediate consideration. Irvine Technology Corporation (ITC) is a leading provider of technology and staffing solutions for IT, Security, Engineering, and Interactive Design disciplines servicing startups to enterprise clients, nationally. We pride ourselves in the ability to introduce you to our intimate network of business and technology leaders – bringing you opportunity coupled with personal growth, and professional development! Join us. Let us catapult your career! Irvine Technology Corporation provides equal employment opportunities (EEO) to all employees and applicants for employment without regard to race, color, religion, sex, national origin, age, disability or genetics. In addition to federal law requirements, Irvine Technology Corporation complies with applicable state and local laws governing non-discrimination in employment in every location in which the company has facilities.

<h3>Machine Learning Engineer (Remote) </h3>We have an immediate need for a contract Machine Learning Engineer to join a world-class academic medical center. Location: Los Angeles, CA (Remote). MUST work Pacific Time Zone hours. This job expects to pay about $58 – 68 per hour plus benefits. What Gets You The Job: <ul><li>Bachelor’s Degree in computer science, artificial intelligence, informatics or related. Master’s Degree preferred. </li><li>3 or more years of relevant Machine Learning Engineer experience. </li><li>Production Deployment and Model Engineering: Proven experience in deploying and maintaining production-grade machine learning models, with real-time inference, scalability, and reliability. </li><li>Scalable ML Infrastructures: Proficiency in developing end-to-end scalable ML infrastructures using on-premise cloud platforms such as Amazon Web Services (AWS), Google Cloud Platform (GCP), or Azure. </li><li>Engineering Leadership: Ability to lead engineering efforts in creating and implementing methods and workflows for ML/GenAI model engineering, LLM advancements, and optimizing deployment frameworks while aligning with business strategic directions. </li><li>AI Pipeline Development: Experience in developing AI pipelines for various data processing needs, including data ingestion, preprocessing, and search and retrieval, ensuring solutions meet all technical and business requirements. </li><li>Collaboration: Demonstrated ability to collaborate with data scientists, data engineers, analytics teams, and DevOps teams to design and implement robust deployment pipelines for continuous improvement of machine learning models. </li><li>Continuous Integration/Continuous Deployment (CI/CD) Pipelines: Expertise in implementing and optimizing CI/CD pipelines for machine learning models, automating testing and deployment processes. </li><li>Monitoring and Logging: Competence in setting up monitoring and logging solutions to track model performance, system health, and anomalies, allowing for timely intervention and proactive maintenance. </li><li>Version Control: Experience implementing version control systems for machine learning models and associated code to track changes and facilitate collaboration. </li><li>Security and Compliance: Knowledge of ensuring machine learning systems meet security and compliance standards, including data protection and privacy regulations. </li><li>Documentation: Skill in maintaining clear and comprehensive documentation of ML Ops processes and configurations. </li><li>Healthcare Expertise preferred: Understanding of healthcare regulations and standards, and familiarity with Electronic Health Records (EHR) systems, including integrating machine learning models with these systems. </li><li>Proficiency in Containerization Technologies: Experience with Docker, Kubernetes, or similar tools preferred. </li> </ul>Irvine Technology Corporation (ITC) is a leading provider of technology and staffing solutions for IT, Security, Engineering, and Interactive Design disciplines servicing startups to enterprise clients, nationally. Irvine Technology Corporation provides equal employment opportunities (EEO) to all employees and applicants for employment without regard to race, color, religion, sex, national origin, age, disability or genetics. #J-18808-Ljbffr

<h3>Job Description</h3><div>Job Description<div>IT Business Analyst (Data Lake Project)We have an immediate need for an IT Business Analyst to join a higher education institution for a 1-year contract. This position will support a project to develop new Data Lake Infrastructure in AWS.Location: Remote. Candidates must reside in Southern California and attend onsite interviewsThis job expects to pay about $65-75/hr withbenefits.What You Will Do: <ul><li>Responsible for collecting, analyzing and documenting all business and functional requirements for development of a new Data Lake infrastructure in AWS Cloud environment.</li><li>Responsible for analyzing and providing all relevant documentation related to the needed infrastructure for establishing the Data Lake.</li><li>Responsible for supporting the most recent advancements in Business Analytics to ensure the system meets evolving business needs.</li><li>Responsible for Profiling new and existing data sources to help to help define and refine the data warehouse model.</li><li>Responsible for working with QA resources on the project to assist in test planning to ensure quality and consistency within the data lake and Data Warehouse.</li><li>Responsible for gathering data governance requirements and ensuring implementation of data governance practices within the data lake Infrastructure</li><li>Responsible for collaborating with functional users to gather and define metadata for the Data Lake</li></ul>What Gets You The Job: <ul><li>Three to five years relevant experience with BA/BS degree in related field, or one to three years relevant experience with MA/MS in related field, or equivalent combination of education and experience in Business Analysis in an IT environment.</li><li>Demonstrated skills eliciting requirements using interviews, document analysis, requirements workshops, surveys, site visits, business process descriptions, use cases/scenarios, and task/ workflow analysis.</li><li>Experience working with clients/project stakeholders to analyze data information needs and functional requirements, and developing documents as needed including functional requirements (business requirements document), project plans, use cases, process documents, workflow documents, and test plans.</li><li>Demonstrated knowledge of, and fluency in using Structured Query Language (SQL).</li><li>Proficient in Microsoft Excel, including the ability to create and manipulate spreadsheets, use advanced formulas and functions (such as VLOOKUP, CONCAT and pivot tables), and perform data analysis to support business decision-making processes.</li></ul>Please send your resume to Hannah Xu, Senior Technical Recruiter for immediate consideration.Irvine Technology Corporation (ITC) is a leading provider of technology and staffing solutions for IT, Security, Engineering, and Interactive Design disciplines servicing startups to enterprise clients, nationally. We pride ourselves in the ability to introduce you to our intimate network of business and technology leaders – bringing you opportunity coupled with personal growth, and professional development! Join us. Let us catapult your career!Irvine Technology Corporation provides equal employment opportunities (EEO) to all employees and applicants for employment without regard to race, color, religion, sex, national origin, age, disability or genetics. In addition to federal law requirements, Irvine Technology Corporation complies with applicable state and local laws governing non-discrimination in employment in every location in which the company has facilities</div></div>

<h3>Job Description</h3><div>Job Description<div>Business Analyst, IT Resiliency Program (Remote)We have an immediate need for a contract Business Analyst, IT Resiliency Program to join our client, a national chain of convenience stores and gas stations. The Business Analyst, IT Resiliency Program will facilitate data reporting, lead cross-collaboration efforts across multiple domains, and drive projects metrics related to IT resilience.Location: Tempe, AZ (Remote)This job expects to pay about $51 – 53 per hour plus benefits.What You Will Do: <ul><li>Gather, document, and prioritize business and technical requirements for IT resiliency projects.</li><li>Collaborate with stakeholders to define project goals, aligning requirements with organizational objectives.</li><li>Develop and implement data collection processes, ensuring data quality, consistency, and integrity.</li><li>Manage data pipelines and integrate data from multiple sources to support comprehensive reporting.</li><li>Build, maintain, and optimize a Resiliency Dashboard using Power BI, Tableau, or similar tools, to visualize resilience metrics and provide real-time insights.</li><li>Design and automate regular and ad-hoc reports for stakeholders, enabling data-driven decision-making.</li><li>Lead and coordinate data collection, dashboard development, and reporting projects, ensuring they meet timelines and budget requirements.</li><li>Implement process improvements and automation in reporting and dashboard refreshes using tools.</li></ul>What Gets You the Job: <ul><li>5-7 years of data analysis experience with some project management knowledge</li><li>Knowledge of service, quality assurance, hardware, and application delivery.</li><li>Proven experience with managing stakeholders.</li><li>Excellent understanding of the organization’s goals and objectives.</li><li>Knowledge of applicable data privacy practices and laws.</li><li>Excellent written and oral communication skills.</li><li>Excellent listening and interpersonal skills.</li><li>Strong customer-service orientation.</li><li>Highly self-motivated and directed.</li><li>Keen attention to detail.</li><li>Ability to effectively prioritize and execute tasks in a high-pressure environment.</li><li>Experience working in a team-oriented, collaborative environment.</li></ul>Irvine Technology Corporation (ITC) is a leading provider of technology and staffing solutions for IT, Security, Engineering, and Interactive Design disciplines servicing startups to enterprise clients, nationally. We pride ourselves in the ability to introduce you to our intimate network of business and technology leaders – bringing you opportunity coupled with personal growth, and professional development! Join us. Let us catapult your career!Irvine Technology Corporation provides equal employment opportunities (EEO) to all employees and applicants for employment without regard to race, color, religion, sex, national origin, age, disability or genetics. In addition to federal law requirements, Irvine Technology Corporation complies with applicable state and local laws governing non-discrimination in employment in every location in which the company has facilities.</div></div>

IT Business Analyst (Data Lake Project)We have an immediate need for an IT Business Analyst to join a higher education institution for a 1-year contract. This position will support a project to develop new Data Lake Infrastructure in AWS. Location: Remote. Candidates must reside in Southern California and attend onsite interviewsThis job expects to pay about $65-75/hr with benefits. What You Will Do: <ul><li>Responsible for collecting, analyzing and documenting all business and functional requirements for development of a new Data Lake infrastructure in AWS Cloud environment.</li><li>Responsible for analyzing and providing all relevant documentation related to the needed infrastructure for establishing the Data Lake.</li><li>Responsible for supporting the most recent advancements in Business Analytics to ensure the system meets evolving business needs.</li><li>Responsible for Profiling new and existing data sources to help to help define and refine the data warehouse model.</li><li>Responsible for working with QA resources on the project to assist in test planning to ensure quality and consistency within the data lake and Data Warehouse.</li><li>Responsible for gathering data governance requirements and ensuring implementation of data governance practices within the data lake Infrastructure</li><li>Responsible for collaborating with functional users to gather and define metadata for the Data Lake</li></ul>What Gets You The Job: <ul><li>Three to five years relevant experience with BA/BS degree in related field, or one to three years relevant experience with MA/MS in related field, or equivalent combination of education and experience in Business Analysis in an IT environment.</li><li>Demonstrated skills eliciting requirements using interviews, document analysis, requirements workshops, surveys, site visits, business process descriptions, use cases/scenarios, and task/ workflow analysis.</li><li>Experience working with clients/project stakeholders to analyze data information needs and functional requirements, and developing documents as needed including functional requirements (business requirements document), project plans, use cases, process documents, workflow documents, and test plans.</li><li>Demonstrated knowledge of, and fluency in using Structured Query Language (SQL).</li><li>Proficient in Microsoft Excel, including the ability to create and manipulate spreadsheets, use advanced formulas and functions (such as VLOOKUP, CONCAT and pivot tables), and perform data analysis to support business decision-making processes.</li></ul> Please send your resume to Hannah Xu, Senior Technical Recruiter for immediate consideration. Irvine Technology Corporation (ITC) is a leading provider of technology and staffing solutions for IT, Security, Engineering, and Interactive Design disciplines servicing startups to enterprise clients, nationally. We pride ourselves in the ability to introduce you to our intimate network of business and technology leaders – bringing you opportunity coupled with personal growth, and professional development! Join us. Let us catapult your career! Irvine Technology Corporation provides equal employment opportunities (EEO) to all employees and applicants for employment without regard to race, color, religion, sex, national origin, age, disability or genetics. In addition to federal law requirements, Irvine Technology Corporation complies with applicable state and local laws governing non-discrimination in employment in every location in which the company has facilities.

Irvine Technology Corporation Interview Questions

Irvine Technology Corporation Interview Guides

Irvine Technology Corporation Interview Questions

Irvine Technology Corporation Salaries by Position

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