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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 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

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

Colsa Salaries by Position

General Summary: Data Analytics with Power BI Support our Army customer as a Data Analyst, by recognizing business requirements in the context of BI and creating data models to transform raw data into relevant insights for senior leadership. Identify trends and issues with an emphasis on sound judgment, and initiative. Work closely with a high-performing, fast-paced team to develop products for decision-makers. Responsibilities + Integrate data from multiple sources to produce requested or required data elements + Develop and maintain complex data models for business data analysis and reporting purposes + Using Power BI, create dashboards and interactive visual reports + Define key performance indicators (KPIs) with specific objectives and track them regularly + Analyze data and display it in reports to aid decision-making + Convert business needs into technical specifications and establish a timetable for job completion + Create, test, and deploy Power BI scripts, as well as execute efficient deep analysis + Use Power BI to run DAX queries and functions + Create charts and data documentation with explanations of algorithms, parameters, models, and relationships + Use SQL queries as applicable to get the best results for data analysis and visualization + Develop briefings for a better understanding of the data, by using filters and visualizations + Analyze current ETL procedures to define and create new systems At COLSA, people are our most valuable resource and centered at our core value. We invite you to unite your talents with opportunity and be a part of our Family of Professionals! Learn about our employee-centric culture and benefits here (https://www.colsa.com/culture_benefits/) . Required SkillsRequired Experience + Bachelor's degree in computer science, data science, engineering, math, statistics, operations research, business, or related field or equivalent experience + Minimum of 3 years of related experience + Active Secret security clearance + Must be proficient in Microsoft Outlook, Excel, Word, and PowerPoint + Background with BI tools and systems such as Power BI, Tableau, and SAP + Prior experience in data-related tasks + Understanding of the Microsoft BI Stack + Mastery in data analytics + Should be proficient in software development + Be familiar with MS SQL Server BI Stack tools and technologies, such as SSRS and TSQL, Power Query, MDX, PowerBI, and DAX + Analytical thinking for converting data into relevant reports and graphics + Capable of enabling row-level data security + Knowledge of Power BI application security layer models + Ability to run DAX queries on Power BI desktop + Proficient in doing advanced-level computations on the data set + Excellent communication skills are required to communicate needs with client and internal teams successfully Preferred Skills + MS in Applied Data Science + Familiarity with APAS, Vantage, and Advana + CompTIA Data+ + Google Data Analytics Professional Certificate or Microsoft Certified: Power BI Data Analyst Associate Applicant selected will be subject to a government security investigation and must meet eligibility requirements for access to classified information. COLSA Corporation is an Equal Opportunity Employer, Minorities/Females/Veterans/Disabled. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, or national origin.

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