This example illustrates the use of regression analysis in a simple random cluster sampling design. The data are from S rndal, Swenson, and Wretman (1992, p. 652). A total of 284 Swedish ...

Systematic sampling is straightforward and low risk, offering better control. However, it may introduce sampling errors and ...

Over the past few years, I’ve relied on four simple P&L lenses to decide which AI initiatives deserve investment and which ...

The “one big breakthrough” pattern suggests that total citation counts can mislead. A researcher with one highly-cited paper and several uncited ones may have a more impactful trajectory than one with ...

Jamaat Ameer Shafiqur Rahman received 22.5% support, while NCP Convener Nahid Islam was named by 2.7% of respondents.

Researchers have developed a new type of porous microneedle that can extract interstitial fluid from skin faster than ever before, without drawing ...

Generative AI models have been used to create enormous libraries of theoretical materials that could help solve all kinds of ...

A new Wharton study explains why stock returns aren’t random. Correlation neglect causes market overreaction, momentum, and reversals investors consistently misprice.

More than 4,400 lawsuits have been filed since millions of Americans embraced GLP-1 drugs like Ozempic, Wegovy and Mounjaro ...

Part two of the PetSmart Charities–Gallup study reveals gaps between veterinarians and pet owners on flexible care options ...

Another machine unlearning method recently was developed specifically for AI-generated voices. Jong Hwan Ko, an associate ...