Tag: Testing

What is NDT? Non-Destructive Testing (NDT) involves a variety of techniques used to inspect and assess materials or components without causing any harm or affecting their future use. These techniques are essential for preventive maintenance, quality control, and regulatory compliance in industries ...

These are examples (modified to preserve anonymity) of some parents’ discomfort and confusion when they learn that their student — in both cases, advanced speakers of English doing well without support from a language specialist — is required by the Department of Education (DOE) to...

QUALIFICATION OF CONTRACT TESTING LABORATORY The purpose of this SOP is to describe the procedure for selection, approval, and renewal of contract testing laboratory for testing/calibrations. SCOPE OF CONTRACT TESTING LABORATORY: This procedure is applicable for testing done at contract tes...

When I first encountered hypothesis testing in statistics during my early days in data science, it seemed like a complex concept. But over time, I’ve come to understand it as a fundamental tool for making decisions based on sample data. Essentially, hypothesis testing helps us draw conclusions...

By conducting experiments on a small group of users (artificial intervention), estimate the causal effect of X intervention on business metric Y, to guide future company strategies. In tech industry, X can be new feature in web/app, new product or new promotion strategy etc. Y can be...

Exploratory Data Analysis (EDA) serves as the foundational step in understanding datasets. It entails the meticulous examination of data to unveil patterns, relationships, and critical insights. EDA is akin to detective work for data scientists, enabling them to form initial conclusions about the da...

A/B testing is one of the most popular controlled experiments used to optimize web marketing strategies. It allows decision makers to choose the best design for a website by looking at the analytics results obtained with two possible alternatives A and B. In this article we’ll see how ...

The K-S Test was named after two Russian statisticians from the era of the Russian Empire, Andrey Kolmogorov and Nikolai Smirnov. It was introduced in the 1930s, before World War II broke out. During that time, Joseph Stalin, who became the leader of the Soviet Union, imposed strict censorship on ac...