4
10-113.
The owner of Taco Shack saw reviews online complaining that there was not
enough cheese on his tacos. Without identifying himself, he randomly
purchased 250 tacos from his own stores and from his competitor. He weighed
the amount of cheese on each taco. His results are below:


Is there an association between the amount of cheese and where a taco was
purchased? Should the owner of Taco Shack adjust the amount of cheese based
on what his competitor is doing?