same sampling fraction in all cases, adequate samples could 

 be expected in all four subuniverses. ) Because of the different 

 sampling fractions within each city, the samples had to be 

 reweighted so that all the findings could be shown for each city 

 as a whole. As between cities, however, no reweighting was 

 done, since each city involves a separate study with a separate 

 sample. Therefore, even after reweighting, the "tabulating 

 cases" for each city represent a different proportion of its 

 universe, as shown in the following: 



City 



Atlanta, Georgia 

 Chicago, Illinois 

 Cleveland, Ohio 

 Denver, Colorado 

 Houston, Texas 



Los Angeles, California 



New York, New York 



Omaha, Nebraska 



Portland, Oregon 



Springfield, Massachusetts 196 



Total 4,418 



