Suppose That I Want to Know How Many Hot Dogs

Essay

Suppose that I want to know how many hot dogs the average American adult eats in a year. So, I go to a Giants baseball game and ask the first 100 fans I meet how many hot dogs they eat in a year. I find that the average member of my sample eats 250 hot dogs a year.
a. What type of sample have I selected (i.e., random, convenience, representative)?
b. Who is my population supposed to be, according to my research question?
c. What type of study is this, descriptive or inferential?
d. Do you think my results will generalize to the larger population? Tell me why or why not.