• Entry
  • Reader's guide
  • Entries A-Z
  • Subject index

Weights are numbers attached to observations in order to get unbiased and/or more efficient parameter estimates. These are used in stratified sampling, in regression when error variances are not homogeneous, in robust estimation when the ...

Loading
  • Loading...
locked icon

Sign in to access this content

Get a 30 day FREE TRIAL

  • Watch videos from a variety of sources bringing classroom topics to life
  • Read modern, diverse business cases
  • Explore hundreds of books and reference titles