example, we could ask if the area of psychology that a person prefers depends on whether they would select a cat or a dog as a pet. (This isn't as odd as it seems. Some areas of psychology tend to be more male dominated while other areas tend to be more female dominated. There also is a difference in which pet males and females prefer.)
1. Write the hypotheses:
H0: The area of primary interest in psychology and type of pet preferred are independent of each other.
H1: The area of primary interest in psychology and type of pet preferred are not