Lazarsfeld, Berelson, and Gaudet (1948) present the following tables relating degree of...

Lazarsfeld, Berelson, and Gaudet (1948) present the following tables relating degree of interest in political elections to education and age:

Since there are three factors—education, age, and interest—these tables considered jointly are more complicated than the tables considered in this chapter.

a. Examine the tables informally and analyze the dependence of interest in political elections on age and education. What do the numbers suggest?

b. Extend the ideas of this chapter to test two hypotheses, H₁: given educational level, age and degree of interest are unrelated, and H₂: given age, educational level and degree of interest are unrelated.