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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

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

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?

People Tech Group Inc Salaries by Position

Hi Folks, Greetings from People Tech Technology Private Limited! Openings for Software Engineer and below the details job description for your reference. Role: Software EngineerExperience: 4 - 6 YearsWork Location: HyderabadWork Model: Work From OfficeNotice Period: Immediate to 30 Days Job Description <ul><li>Lead by example in coding standards, development practices, and overall project quality.</li><li>Mentor junior engineers, providing guidance, support, and feedback. Design, develop, and maintain software solutions Write clean, efficient, and well-documented code.</li><li>Perform debugging, testing, and optimization of code. Participate in project planning, estimation, task breakdown and Ensure timely delivery of features and projects. Conduct thorough code reviews to ensure code quality</li><li>Must have Hands on Embedded Software development experience involving Graphics Demonstrated Experience in Embedded C/C++ Programming.</li><li>Good understanding of Object-Oriented Programming.</li><li>Good analytical and Problem-Solving skills. Experience in smart debugging and Fixing the issues.</li><li>Knowledge in Multi-threading and IPC communication programming is a must.</li><li>Good experience in writing and executing the unit tests for Better code quality.</li><li>Working Knowledge of Software Modelling tools like IBM Rhapsody/ Enterprise Architect Hands on Experience with Debugging tools is a must (Good to have experience with Greenhills Multi, Integrity etc.) Knowledge of Testing and simulation tools like Vector Canoe is a Plus Any Knowledge on Instrument panel cluster as a system is a Huge Plus.</li></ul>

Position OverviewThis internship focuses on developing the skills needed to effectively solve problems and implement data structures, aimed at beginners or those looking to solidify their understanding of the fundamentals. The program includes guided exercises, coding challenges, and collaborative problem-solving sessions. Responsibilities<ul><li>Participate in weekly workshops and coding sessions on data structure fundamentals (arrays, linked lists, stacks, queues, etc.).</li><li>Engage in daily problem-solving exercises to practice implementing data structures and algorithms.</li><li>Work collaboratively with fellow interns on mini-projects to reinforce learning objectives.</li><li>Complete assignments and challenges designed to test understanding and problem-solving skills.</li><li>Attend mentoring sessions with senior developers for guidance and feedback.</li></ul> Learning Objectives<ul><li>Develop proficiency in implementing basic data structures.</li><li>Strengthen algorithmic problem-solving abilities.</li><li>Gain exposure to real-world coding practices and coding environment setup.</li><li>Prepare for advanced coding modules in the following internship levels.</li></ul> Qualifications<ul><li>Masters or recent graduate in Computer Science, Software Engineering, or a related field.</li><li>Basic understanding of at least one programming language (preferably Python, Java, or C++).</li><li>Strong interest in problem-solving and willingness to learn.</li><li>Good communication skills and ability to work in a team.</li></ul><li></li>

About the Program:People Tech Technology is pleased to offer a comprehensive Data Training Program designed for individuals looking to start a career in data science and analytics. This program aims to equip participants with the essential skills and knowledge required to become proficient data professionals.Key Responsibilities:<ul><li>Training Participation: Attend and actively engage in all training sessions, workshops, and assignments.</li><li>Learning and Development: Utilize training materials, complete exercises, and participate in discussions to deepen understanding of data science and analytics concepts.</li><li>Project Work: Apply learned skills by working on real-world projects and assignments with guidance from experienced mentors.</li><li>Data Analysis: Conduct data cleaning, analysis, and visualization using various tools and techniques.</li><li>Collaboration: Work collaboratively with peers and mentors to foster a productive learning environment.</li><li>Feedback and Improvement: Provide and receive constructive feedback to and from peers and mentors to continually improve skills and program experience.</li></ul>What You Will Learn:<ul><li>Data Fundamentals: Understanding data types, data collection, and data cleaning techniques.</li><li>Statistics and Probability: Basic concepts of statistics and probability used in data analysis.</li><li>Programming for Data Science: Using programming languages such as Python or R for data manipulation and analysis.</li><li>Data Visualization: Creating visualizations using tools like Matplotlib, Seaborn, or Tableau.</li><li>Machine Learning: Introduction to machine learning concepts, algorithms, and model evaluation.</li><li>Big Data Technologies: Understanding big data frameworks like Hadoop and Spark.</li><li>SQL and Databases: Writing SQL queries and understanding database management.</li><li>Data Storytelling: Communicating insights effectively through data storytelling and presentation.</li></ul>Qualifications:<ul><li>Education: Masters in Computer Science, Statistics, Mathematics, Engineering, or a related field (or currently pursuing one).</li><li>Basic Programming Knowledge: Familiarity with basic programming concepts, preferably in any programming language.</li><li>Passion for Data: Demonstrated interest in data science and analytics.</li><li>Analytical Skills: Strong analytical and problem-solving skills.</li><li>Communication Skills: Strong verbal and written communication skills.</li></ul>Preferred Skills (Not Mandatory):<ul><li>Prior Experience with Data: Any prior experience with data analysis or related fields is a plus.</li><li>Knowledge of Statistics: Basic understanding of statistical concepts and methods.</li></ul>Benefits:<ul><li>Hands-on Training: Gain practical experience through real-world projects.</li><li>Mentorship: Receive guidance and support from experienced data professionals.</li><li>Career Opportunities: Potential for full-time employment opportunities upon successful completion of the program.</li><li>Networking: Connect with industry professionals and like-minded peers.</li></ul>

Hi Connections, We are hiring for Data Science, Please find below Job Description. Role Overview: We are seeking a Data Scientist with 3+ years of experience to develop and implement analytical models, perform deep analyses, and derive actionable insights from complex data sets. This role requires expertise in Python, SQL, machine learning, and NLP, along with hands-on experience in data visualization and cloud technologies. Key Responsibilities:<ul><li>Data Analysis and Modeling: Design, build, and deploy machine learning and deep learning models to address business challenges. Utilize Python, SQL, and related tools for data manipulation and analysis.</li><li>Natural Language Processing: Apply advanced NLP techniques using libraries such as SpaCy, NLTK, and Transformers for tasks like text classification, sentiment analysis, and named entity recognition.</li><li>Computer Vision: Implement computer vision solutions to analyze and interpret visual data.</li><li>Data Visualization: Create visualizations and dashboards to effectively communicate insights using tools like Matplotlib, Seaborn, or similar.</li><li>MLOps: Develop and manage MLOps pipelines for model deployment and monitoring using AWS, Docker, and FastAPI.</li><li>Generative AI and RAG: Work on generative AI models and retrieval-augmented generation (RAG) techniques, leveraging frameworks such as LangChain and Hugging Face.</li><li>Vector Databases and Multi-Model Approaches: Utilize vector databases and multi-vector methods to enhance retrieval and similarity tasks.</li><li>Knowledge Graphs and Advanced RAG: Incorporate knowledge graphs and advanced RAG strategies for improved data retrieval and information extraction.</li><li>Collaboration: Work with product managers, engineers, and other stakeholders to convert business requirements into technical solutions. Communicate findings clearly to both technical and non-technical audiences.</li></ul> Basic Qualifications:<ul><li>Bachelor’s degree in Computer Science, Data Science, Statistics, Mathematics, or a related field.</li><li>3+ years of professional experience in data science or a similar role.</li><li>Proficiency in Python and SQL.</li><li>Solid experience with machine learning and deep learning frameworks (e.g., TensorFlow, PyTorch).</li><li>Experience with NLP techniques and tools (e.g., SpaCy, NLTK).</li><li>Hands-on experience in data visualization and interpretation.</li><li>Basic understanding of MLOps practices and tools (e.g., AWS, Docker).</li><li>Familiarity with generative AI models and RAG techniques.</li><li>Knowledge of vector databases and multi-vector approaches.</li><li>Ability to work effectively in a collaborative team environment.</li></ul> Required Qualifications:<ul><li>Strong experience in developing and deploying machine learning models.</li><li>Proficiency in implementing advanced NLP techniques.</li><li>Hands-on experience with computer vision applications.</li><li>Demonstrated ability to create insightful data visualizations.</li><li>Practical experience with MLOps, including deploying models using cloud platforms like AWS and containerization tools like Docker.</li><li>Experience with generative AI and RAG frameworks, including LangChain and Hugging Face.</li><li>Understanding of knowledge graphs and advanced RAG methodologies.</li></ul> Interested candidate can share resume at kratika.rojade@peopletech.com

Duration: Long TermLocation: Seattle, WA(Onsite from Day 1)Below is the job requirements:• Experience with one or more programing language: React, Angular, JavaScript, CSS, HTML5, RESTful API, Node.js, Java, GraphQL, web technologies.• Experience with database technologies such as Amazon DynamoDB, MongoDB, SQL, etc.• Experience/knowledge of AWS services : Lambdas, API Gateways, S3, SNS, Step functions etc.• Experience with development tools such as Jenkins, GitHub, lint, etc.• Experience in understanding large and complex code bases, including API design techniques to help keep them clean and maintainable.• Minimum of 5+ years of experience in software development.• B.S. or M.S. preferably in Computer Science or related field or equivalent work experience

People Tech Group Inc Interview Questions

People Tech Group Inc Interview Guides

People Tech Group Inc Interview Questions

People Tech Group Inc Salaries by Position

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