Summary This program shows how to improve the accuracy of a survey by using stratified random sampling and how to avoid sampling errors such as bias. While surveys are becoming increasingly important tools in shaping public policy, a 1936 Gallup poll provides a striking illustration of the perils of undercoverage.
Directed : Unknown
Written : Unknown
Stars : Teresa M. Amabile Chuck Schwalbe Andrew Liebhold Pardis Sabeti
Genres : Documentary
Countries of origin : United States
Official sites : Annenberg Learner Webpage
Language : English
Filming locations : Los Angeles, California, USA
Production companies : Annenberg/CPB Project Annenberg Learner
Summary This program shows how to improve the accuracy of a survey by using stratified random sampling and how to avoid sampling errors such as bias. While surveys are becoming increasingly important tools in shaping public policy, a 1936 Gallup poll provides a striking illustration of the perils of undercoverage.
Genres : Documentary
Countries of origin : United States
Official sites : Annenberg Learner Webpage
Language : English
Filming locations : Los Angeles, California, USA
Production companies : Annenberg/CPB Project Annenberg Learner
