Each interview was then given its proper weight by duplication 

 of its punch cards on the basis of the particular sampling rate 

 used in selection of the establishment. 



The weighted distribution of responses were then tabulated by- 

 machine and percentaged as shown in the Detailed Findings. 



E. Reporting 



The results of the survey are reported separately for each of 

 ten selected cities. 



Four classes and four Sizes of establishments were defined for 

 the study and these were used for analysis v^ere the sample 

 size permitted. Where the sample was too small to yield 

 statistically meaningful data, combinations have been made 

 within these indicators. 



Below are the basic classifications utilized and in the case of 

 type of operation the most frequently used combination. Com- 

 binations within sales volume, where used, are self-explanatory. 



Type of Establishment 



Class I 



Establishments primarily engaged 

 in serving food to the general 

 public. (Restaurants, cafeterias, 

 etc . 



Class II 



Establishments serving food to 

 limited groups of people. (Schools, 

 plants, commercial enterprises , 

 etc. 



