The estimated adjustment factors for all ten cities in this 

 survey are submitted in the following table together with the 

 total number of completed interviews for each city as shown 

 in the section on Sample Design. 



Atlanta, Georgia 

 Chicago, Illinois 

 Cleveland, Ohio 

 Denver, Colorado 

 Houston, Texas 

 Los Angeles, California 

 New York, New York 

 Omaha, Nebraska 

 Portland, Oregon 

 Springfield, Massachusetts 



Adjustnnent 

 Factor 



Total 

 Number of 

 Interviews 



Total 



4,418 



Following are examples of how the table should be used. 



The proportion of all public and institutional eating places in 

 Denver, Colorado, that bought frozen processed sea food in the 

 preceding 12 months is 58. 8 percent (Denver Table 1, Column 1, 

 Line 4); this percentage is based on the total Denver sample of 

 216 eating places (ibidem, line 1 and table above, line 4). 

 Applying the formula for simple random sampling, we get: 



dp = /pq = 



7.588 X .412 = /242256 = /.001121 



V 216 V 216 v' 



0335 



Applying the adjustment factors shown in the table above, line 4, 

 we estimate the error of the proportion as follows: 



dp = 1.05 X .0335 = .035175 (say .036) 



12 



