Question: Devon conducts a study that tests the following hypothesis: If hours of sleep increase, student grades will increase. This statement is a Devon conducts a

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

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