1. **State the problem:** Determine which decisions generalize a CORRECT action in relation to a null hypothesis (H0). 2. **Recall the definitions:** - The null hypothesis (H0) is a statement assumed true until evidence suggests otherwise. - Correct decisions in hypothesis testing are: - Accepting H0 when H0 is true (correct acceptance). - Rejecting H0 when H0 is false (correct rejection). 3. **Analyze each statement:** - i. "The null hypothesis is accepted when H0 is true." This is a correct action. - ii. "The null hypothesis is rejected when H0 is false." This is also a correct action. - iii. "The null hypothesis is rejected when it is true." This is an incorrect action (Type I error). 4. **Conclusion:** The correct actions are statements i and ii. **Final answer:** A. i and ii