Which of the Following Is a Research Question That Could

Multiple Choice

Which of the following is a research question that could be addressed using a one-way analysis of variance?

A) Does mean blood pressure differ for three different age groups?
B) Does the variance of blood pressure differ for three different age groups?
C) Are the proportions of people who oppose capital punishment different for three different age groups?
D) Is there a relationship between political party preference and age?