If you are going to conduct a survey for market research to enhance your business, you need to know the correct size of your survey. If you have a survey that is too small, you might not get a feel of ...

While previous sections of this report have focused on the kinds of systematic biases that may be the largest worry when it comes to public opinion polls, the variance (or precision) of estimates is ...

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 ...

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 ...