In most countries including the United States, younger people tend to be on the left side of

Question:

In most countries including the United States, younger people tend to be on the left side of the political spectrum. If so, we would expect Republicans to be older than Democrats.

a. Conduct a test to determine whether there is enough evidence to infer that Republicans (PARTYID3: 1 = Democrat; 3 = Republican) are older than Democrats (AGE).

b. What are the required conditions? Are they satisfied?

c. If the required conditions are not satisfied, what other technique should be used?