Which of the following is an example of a null hypothesis? A) There is a relationship between the season of the year and a person's affect. B) H_o: X_A ≠ X_B C) There is a difference in symptoms between Group A and Group B. D) H_o: µ_A = µ_B

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A null hypothesis states that there is no significant difference or relationship between two variables. Option D presents a null hypothesis where the mean values of two groups are not significantly different. Option A presents an alternative hypothesis suggesting a relationship between two variables, while options B and C are not clear hypotheses.

Which of the Following Is an Example of a Null