Market Research Glossary

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There are currently 4 names in this directory beginning with the letter Z.

Z Test

is a statistical test that is based on the standard normal distribution.

Z Value

is the number of standard deviations a point on a distribution is away from the mean.

ZIP Code

The United State Postal Service assigns regions or mailing districts with a Zone Improvement Plan (ZIP) code. A standard ZIP code contains 5 digits (i.e. 98040), or a combination of 5 digits – 4 digits (i.e. 98040-4545).

ZIP Code Demographics

Provides statistics and characteristics of a population located within a designated ZIP code. Age, sex, race, and total population size are just a few attributes a ZIP code demographic analysis can provide.