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Question: The following are titles of some of the news stories in the Appendix. In each case, determine whether the study was a randomized experiment or an observational study, then discuss whether the title is justified based on the way the study was done.

a. News Story 3: "Rigorous veggie diet found to slash cholesterol."

b. News Story 8: "Education, kids strengthen marriage."

c. News Story 10: "Churchgoers live longer, study finds."

d. News Story 15: "Kids' stress, snacking linked."

e. News Story 20: "Eating Organic Foods Reduces Pesticide Concentrations in Children."

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