Question

An increase in hours of television viewing leads to increases in the sales of snack foods. This is an example of a _____.

a. research question
b. descriptive hypothesis
c. correlational hypothesis
d. causal hypothesis

Answer 1

This is not a question (it's not in the form of a question, but in form of a statement) so it's also not a research question.

It's therefore a hypothesis. It suggests that one thing leads to (causes) another - so the correct answer is d. causal hypothesis.