Devon conducts a study that tests the following hypothesis: "If hours of sleep increase,student grades will increase." This statement is a
A)null hypothesis.
B)hypothesis of difference.
C)hypothesis of association.
D)causal hypothesis.

Question

Quizplus · Accepted Answer

The hypothesis states that there is an association between hours of sleep and student grades, indicating a correlation between the two variables. It does not suggest causation or a difference between groups. Therefore, it is a hypothesis of association.

Devon Conducts a Study That Tests the Following Hypothesis: "If