Statistics for Analytics and Data Science: Hypothesis Testing and Z-Test vs. T-Test

Analytics Vidhya

Overview Hypothesis testing is a key concept in statistics, analytics, and data science Learn how hypothesis testing works, the difference between Z-test and t-test, The post Statistics for Analytics and Data Science: Hypothesis Testing and Z-Test vs. T-Test appeared first on Analytics Vidhya. Beginner Python Statistics Technique hypothesis building Hypothesis Testing statisticial tests statistics statistics for data science t-test z test

A/B Testing for Data Science using Python – A Must-Read Guide for Data Scientists

Analytics Vidhya

Overview A/B testing is a popular way to test your products and is gaining steam in the data science field Here, we’ll understand what. The post A/B Testing for Data Science using Python – A Must-Read Guide for Data Scientists appeared first on Analytics Vidhya.

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Hypothesis Testing: A Way to Prove Your Claim Using p-value

Analytics Vidhya

Introduction One of the most basic concepts in statistics is hypothesis testing. Not just in Data Science, Hypothesis testing is important in every field. The post Hypothesis Testing: A Way to Prove Your Claim Using p-value appeared first on Analytics Vidhya. Beginner Business Analytics Statistics Technique confidence interval confidence level Hypothesis Testing one tailed test p-value statistics statistics two tailed test

Statistics for Data Science: Introduction to t-test and its Different Types (with Implementation in R)

Analytics Vidhya

Introduction “You can’t prove a hypothesis; you can only improve or disprove it.” – Christopher Monckton Every day we find ourselves testing new ideas, The post Statistics for Data Science: Introduction to t-test and its Different Types (with Implementation in R) appeared first on Analytics Vidhya. R Statistics Hypothesis Testing Inferential Statistics statistics t-test

How to Find and Test Assumptions in Product Development

Assumptions mapping is the process of identifying and testing your riskiest ideas. Watch this webinar with Laura Klein, product manager and author of Build Better Products, to learn how to spot the unconscious assumptions which you’re basing decisions on and guidelines for validating (or invalidating) your ideas.

Walmart to test drone delivery of COVID-19 test kits


(Reuters) - Walmart Inc said on Tuesday it would run a pilot project to deliver self-collection test kits for coronavirus through automated drones at customers' doorsteps.

What is the Chi-Square Test and How Does it Work? An Intuitive Explanation with R Code

Analytics Vidhya

Overview What is the chi-square test? Learn about the different types of Chi-Square tests and where and when you should. The post What is the Chi-Square Test and How Does it Work? R Statistics Technique chi-square test statistical tests statistics statistics for data science statistics in RHow does it work? An Intuitive Explanation with R Code appeared first on Analytics Vidhya.

Pen-Tests Improve Enterprise Security


However, a pen testing company suggests that most of the organizations are making progress in securing their systems against cyber attacks. They gather aggregated data from penetration tests and red team engagements to highlight the vulnerabilities that companies rectify to secure their networks, systems, and applications. The pen-tests engagements are performed to see all the similarities it could find across enterprise networks.

How Artificial Intelligence Changes Test Case Management?


With the adoption of artificial intelligence in many businesses, testing practices are on the verge of revolution, especially in terms of test case management, test design, and test case execution. The integration of artificial intelligence in software development and testing practices improves the accuracy and quality of the end product while reducing the efforts and the invested time. Machine Learning Application in Test Case Management.

UK says test result issue on England's COVID-19 app resolved


LONDON (Reuters) - An issue with England's COVID-19 smartphone app, launched to curb the spread of the virus, which meant it could not accept around a third of test results has been resolved, the government said on Sunday.

How AI is Transforming Software Testing


As per one of the growing trends, the professionals in the field of software testing now believe more and more that in future the domain will see increasing automation of the current manual testing processes. The time now devoted to actual software development is expected to come down and instead, more time and resources will be required to test the mobile and hybrid software applications. In software development, tests are required at every stage.

Testing at Every Stage of Development

Up to 80% of new products fail. The reality is harsh and the reasons why are endless. Perhaps the new product couldn’t oust a customer favorite. Maybe it looked great but was too hard to use. Or, despite being a superior product, the go-to-market strategy failed. There’s always a risk when building a new product, but you can hedge your bets by understanding exactly what your customers' expectations truly are at every step of the development process.

How To Develop AI-Based Software Testing?


Whether it is e-commerce, healthcare, retail, cybersecurity, app development or software testing, artificial intelligence is a technology penetrating in all walks on life and has a huge impact. This means new horizons for software testing and its scope will be broader than ever. Thus, there will be a new evolution for software testing tools as well. Why AI in Software Testing? However, AI helps in preventing repetitive tasks during testing processes.

High flier: Deutsche Telekom tests mobile antenna in the stratosphere


BERLIN (Reuters) - Deutsche Telekom has successfully tested an aerial base station in the earth's stratosphere, it said on Monday, hoping to bring mobile coverage to remote areas that ground-based networks fail to reach. By Douglas Busvine.

How RPA is Expected to Affect the Future of Software Testing


Hyperautomation is a popular concept in the software testing industry. Workflows here, mean repetitive activities that require low cognitive efforts, including those that are performed during software testing.

Machine Learning Enhances VPN Testing Effectiveness In Amazing Ways

Smart Data Collective

It is also used for testing more effectively. Machine Learning Improves Testing Capabilities of VPN Products. This is why it is crucial that we perform a VPN app test to make sure that everything we do online stays anonymous and guarantee our safety and protection.

EU tests platform to link up coronavirus tracing apps


(Reuters) - Several European countries have started testing a technology platform that will allow national coronavirus tracing apps to 'talk' to one another to better tackle the pandemic, the European Commission said on Monday.

The Best Sales Forecasting Models for Weathering Your Goals

Every sales forecasting model has a different strength and predictability method. It’s recommended to test out which one is best for your team. This way, you’ll be able to further enhance – and optimize – your newly-developed pipeline. Your future sales forecast? Sunny skies (and success) are just ahead!

Volkswagen's new electric car panned by Germany's leading test publication


The inner side of the hood looks like it was painted with a spray can," the publication said, lamenting the absence of Volkswagen's trademark build quality in a pre-production model they were testing in this week's edition.

Tesla tests the circuits for German energy market push


By Vera Eckert, Christoph Steitz, Tom Käckenhoff and Edward Taylor. FRANKFURT (Reuters) - Elon Musk appears to be opening a new front in the European battle for electric car supremacy: the power behind the wheel.

Boeing testing hand-held UV wand to sanitize cockpits, cabins


By Eric M. Johnson. SEATTLE (Reuters) - Boeing Co said on Friday it is developing a hand-held wand that emits ultraviolet light to neutralize bacteria and viruses, part of a suite of methods to disinfect flight deck surfaces and controls, as well as surfaces throughout the cabin.

Dimensionality Reduction using Factor Analysis in Python!

Analytics Vidhya

Algorithm Intermediate Machine Learning BARTLETT’S TEST OF SPHERICITY Dimensionality Reduction Factor analysis KMO test“Beauty gets the attention but personality gets the heart”. These lines portray the importance of things which lies beyond our vision. What about a.

The Recruiting Crossword Puzzle

Test your recruiter-brain with this crossword puzzle, which reveals the best ways to move forward in your efforts with every answer!

Alibaba-backed autonomous car firm AutoX to test in four more cities


SHENZHEN/SHANGHAI (Reuters) - Chinese autonomous vehicle startup AutoX, backed by Alibaba Group Holding Ltd, said it is preparing for tests in four more cities and will soon test its technology with FCA'S Pacifica minivan. To attract deep-pocketed partners, startups seek to test their technology with different production vehicles in a variety of cities. By Yilei Sun and Brenda Goh.

Twitter is testing how its misinformation labels can be more obvious, direct


Roth said the new efforts at Twitter include testing a more visible reddish-magenta color, and working out whether to flag users who consistently post false information. By Elizabeth Culliford.

Testing Your Machine Learning Pipelines


Let’s take a look at traditional testing methodologies and how we can apply these to our data/ML pipelines. 2019 Nov Tutorials, Overviews Machine Learning Pipeline Python

How to Create a Test Set to Approximate Business Metrics Offline

Analytics Vidhya

The post How to Create a Test Set to Approximate Business Metrics Offline appeared first on Analytics Vidhya. Introduction Most Kaggle-like machine learning hackathons miss a core aspect of a machine learning workflow – preparing an offline evaluation environment while building an. Data Science Intermediate Machine Learning Python evaluating the model evaluation model machine learning model machine learning production Model deployment

Add User Tests to Your Agile Process: Reduce Risk in Shipping New Products

Agile has become the go-to methodology for companies that want to reduce the risk involved in shipping new products. But how do you prevent building items nobody wants? If you wait to get user feedback until after development, then you’ve waited too long.

RPA Vs Test Automation – What You Need to Know


And yes, I got what I was looking for and while I was finding my answer, I saw a lot of questions about Robotic Process Automation and Test Automation. Questions such as, What is the difference between Test Automation and Robotic Process Automation? After seeing such questions, my assumption was that people are still unaware of the difference between RPA and Test Automation Services. Especially there are many myths related to Robotic Process Automation and test automation.

How the Role of Test Managers Has Evolved in The Age of Agile


Development and testing teams all around the globe are adopting the Agile way of doing things. This leaves test managers an important question to answer: What does this change mean for us and how will it impact our roles? Managers must be able to quickly gather and process risk-related data to make informed decisions to ensure efficiency in testing. From Testing to CoachingTeams of testers usually consist of highly-skilled QA experts.

Top 5 Statistical Concepts Every Data Scientist Should Know in 2020!

Analytics Vidhya

Beginner Listicle Statistics accuracy Dimensionality Reduction Hypothesis Testing oversampling probability distribution undersamplingThis article was published as a part of the Data Science Blogathon. Must know Statistical concepts for the Data Science journey The main goal.

PyMongo Tutorial: Testing MongoDB Failover in Your Python App


We often undertake testing of failover characteristics of various MongoDB drivers to qualify them for production use cases, or when our customers ask us for advice. In this post, we show you how to connect to an SSL-enabled MongoDB replica set configured with self-signed certificates using PyMongo, and how to test MongoDB failover behavior in your code. Python is a powerful and flexible programming language used by millions of developers around the world to build their applications.

Microservices: The Dark Side

Speaker: Prem Chandrasekaran

A few years ago, Barclays embarked on a journey to migrate its legacy services to a modern tech stack with the objective of achieving a high level of scale, resilience, and reliability. During the incremental, iterative move towards an ecosystem of focused, distributed services, it’s fair to say that the company discovered the challenges of distributing objects. Join us for an episode you can’t miss if you’re finding it a lot harder to architect in practice than in theory, and learn how you can shed light on the dark side of microservices.

Most Common Feature Selection Filter Based Techniques used in Machine Learning in Python

Analytics Vidhya

Classification Intermediate Machine Learning Python Structured Data Supervised Technique Anova blogathon chi-square test CorrelationThis article was published as a part of the Data Science Blogathon. Introduction As a programmer who is engaged in the field of AI.

Case Study Page With Podcast Banner – Test


The post Case Study Page With Podcast Banner – Test appeared first on Home Page – BRIDGEi2i: AI for the Digital Enterprise | Analytics and AI solutions for Enterprises Case study: Commercial Investment Optimizer for a Global Brewery. Business Context.

In lawsuit, 'Fortnite' maker to test idea of iPhone as market unto itself


By Stephen Nellis. Reuters) - 'Fortnite' maker Epic Games has launched the most significant effort yet to advance the legal theory that Apple's iPhone ecosystem has become so "sticky" that it is a distinct software market over which Apple exercises monopoly power.

REST API Testing Strategy: What Exactly Should You Test?


Mike Cohn’s famous Test Pyramid places API tests at the service level (integration), which suggests that around 20% or more of all of our tests should focus on APIs (the exact percentage is less important and varies based on our needs). Once we have a solid foundation of unit tests which cover individual functions, API tests provide higher reliability covering an interface closer to the user, yet without the brittleness of UI tests. API test actions.

How to Package and Price Embedded Analytics

be able to capture in a proposed price, and it’s a good test. HOW TO PACKAGE & PRICE EMBEDDED ANALYTICS. Practical Frameworks to Monetize Embedded Analytics Table of Contents Embedding Analytics to Lift Value and Revenue. 1 Customize to Monetize: The Strategic Way to Create Tiered Offerings.

Our Obsession with Continuous Testing


This system is at the core of our comprehensive testing philosophy that we believe is crucial to delivering a platform that our customers can trust, no matter what DataRobot features they’re using or how they’ve chosen to deploy them. We know from talking with colleagues at other data science companies that our approach to product testing is something that sets us apart from all of the other companies that are just getting started with automated machine learning.

Should I become a data scientist (or a business analyst)?

Analytics Vidhya

Beginner Big data Business Analytics Business Intelligence Career Job Roles career data science framework switch testIntroduction One of the common queries I come across repeatedly on several forums is “Should I become a data scientist (or an analyst)?” ” The.

iFrame Test


The post iFrame Test appeared first on BI Survey. Hadoop and Data Lakes Report. Use Cases, Benefits and Limitations. Request the free report now × Hadoop and Data Lakes. Please enter your contact details below to get your free copy of the report. By downloading the free report you agree to subscribe to our newsletter.

Pardot Test


The post Pardot Test appeared first on BI Survey. Don‘t miss out – Get the latest BI product insights, research, surveys and more! Other

When Life Gives You Lemons Make PM Lemonade: Surviving Product Management During Crisis

Speaker: Vivek Bedi, Keynote Speaker, Author & Entrepreneur

We are all going through challenging times. In fact, the entire way product managers work has completely changed. The work/life balance of PMs is being tested; managing a product team and various roadmaps virtually adds to the list of current challenges. Meanwhile many professionals are exploring if pivoting into product management is a career path for them. Frankly, it's hard to find great resources to learn more about leveling up your product management skills. Well, when life gives you lemons, make PM lemonade!