The margin of error allows you to use smaller sample sizes when conducting customer surveys. The measurement directly relates ...

In presidential elections, even the smallest changes in horse-race poll results seem to become imbued with deep meaning. But they are often overstated. Pollsters ...

I am a statistician, and part of my job is to make inferences and predictions. With unlimited time and money, I could simply test or survey the entire group of people I am interested in to evaluate ...

As Americans await election results, many are looking to the polls for answers. Dr. Andy Smith from the University of New Hampshire Survey Center joined LiveNOW from FOX on Election Day with tips for ...

Understanding the confidence interval will help you grasp what an election poll is -- or is not -- saying. As you might have guessed, the media consistently gets it wrong. Candidate Gobermouch is ...

Click to email a link to a friend (Opens in new window) Click to share on Facebook (Opens in new window) Click to share on Twitter (Opens in new window) Click to print (Opens in new window) [Updated ...

Ofer Harel receives funding from The National Science Foundation, US Food and Drug Administration and The National Institute of Health. He is also sits on the Bureau of Labor Statistics Technical ...