Which of the following represents a null hypothesis regarding differences in SAT score by demographic characteristics?
A) There are no differences in SAT scores among students of different race and ethnicities.
B) Hispanic students score lower than any other students on the SAT.
C) Hispanic students score higher than any other students on the SAT.
D) There are significant differences in SAT among students of different race and ethnicities.

Question

Quizplus · Accepted Answer

A null hypothesis always states that there is no significant difference between the groups being compared. In this case, the null hypothesis would be that there are no differences in SAT scores among students of different race and ethnicities. Option B and C both make specific claims about one demographic group, and Option D states that there are significant differences, which is not a null hypothesis.

Which of the Following Represents a Null Hypothesis Regarding Differences