ELI5: Explain Like I'm 5

Isaac Henry Gosset

Isaac Henry Gosset was a smart and important man who lived a long time ago. He was born in 1876 in London, which is a big city in England. He was really good at math and science and loved learning new things.

When he grew up, he got a job at a company called Guinness, which made a special kind of beer in Ireland. Isaac Henry Gosset was in charge of making sure that the beer tasted good every time they made it.

But Isaac Henry Gosset discovered that there was a problem with the way people were testing the beer. They were using a method that didn't work very well and gave them wrong answers. This made it hard to make good beer every time.

So Isaac Henry Gosset came up with a new way of testing the beer, which was much better than the old way. He called it "Student's t-test" which is a fancy name for a tool that helps figure out if something is good or bad.

Isaac Henry Gosset's new method made it easier for people to test the beer and make it taste better. And his tool also helped other scientists test things, like medicine to make sure they worked correctly.

Today, people still use Isaac Henry Gosset's method and tool in all kinds of industries to make sure things are good and work correctly.