During the summer, food is served at many outdoor fairs and festivals 
throughout the Midwest.  Such food may be less safe than food solid in
restaurants because it is prepared in temporary locations, often by
volunteer help, with limited access to refrigeration.  In a research study,
many people attending various fairs in the Midwest were asked:  "How often
do you think people become sick because of food they consume prepared
at outdoor fairs and festivals?" They were asked a similar questions
regarding becoming sick because of restaurant food and because of fast
food.  The possible responses to all three questions were:

   1 = very rarely
   2 = once in a while
   3 = often
   4 = more often than not
   5 = always

In all, 303 people (196 women and 107 men) were surveyed.

This dataset contains the following variables:
   subject   subject number 
   hfair     response to question abou healthfulness of fair food
   sfair     response to question about getting sick from fair food
   sfast     response to question about getting sick from fast food
   srest     reponse to question about getting sick from restaurant food
   gender    coded "F" and "M"


This dataset is used in Chapter 26 of 
     Moore, D.S. The Basic Practice of Statistics, 4th ed.  
The original research is in 
     Boo, H.C. "Consumers' perceptions and concerns about safety and
               healthfulness of food served at fairs and festivals,"
               MS thesis, Purdue University, 1997.