An intern for the consumer advocacy group in Exercise 3 has decided to make the survey process simpler by calling 150 of the members who attended the recent symposium on “Food Safety in the 21st century” that was recently held in Las Vegas. He has all the phone numbers, so it will be easy to contact them. He will start calling members from the top of the list, which was generated as the members enrolled for the symposium. He has written a script to read to them that follows,

“As we learned in Las Vegas, food safety is of utmost importance in the restaurant business today. Given the enormous effort of the Food Safety Institute in developing proper guidelines and education for food professionals, do you agree that food safety has improved in the U.S.?”

a) What is the population of interest?

b) What is the sampling frame?

c) Point out any problems you see either with the sampling procedure and/or the survey itself. What are the potential impacts of these problems?