Discover how to determine the ideal percentage of a population for a representative sample to ensure accurate data analysis with minimal sampling error.

When people read about a poll, they are often told something like this: Pollsters call a random group of people. Though small, we can infer this group is a representative sample of the U.S. population ...

For a food manufacturer, there are few things worse than calling for a mandatory food product recall. Food safety is a big deal and food recalls occur much more frequently than we may realize. And we ...

A recent study from the MRS Representation in Research steering group found no cost penalty or negative impact on research results when inclusive parameters are included in nationally representative ...

Pollsters call a random group of people. Though small, we can infer this group is a representative sample of the U.S. population because it was selected randomly. Then, if we know the sample size, we ...