Final answer:
The court case that guaranteed parents' interests outweighed the interests of the state is Wisconsin v. Yoder (1972).
Step-by-step explanation:
The court case that guaranteed that parents' interests outweighed the interests of the state is Wisconsin v. Yoder (1972). In this case, the Supreme Court recognized that parents have the right to raise their children according to their own religious beliefs, even if it conflicts with the state's compulsory education laws. The Court found that the Amish parents' interest in preserving their religious lifestyle outweighed the state's interest in compelling their children to attend school past eighth grade.
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