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10. Recall the 7 assumptions of OLS. Imagine a study in which a researcher finds that going on vacation increases life expectancy. Explain why we

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10. Recall the 7 assumptions of OLS. Imagine a study in which a researcher finds that going on vacation increases life expectancy. Explain why we might be skeptical of the "vacation effect" and which of the assumptions of OLS is likely being violated. (Hint: Think of variables that might serve to confound the results.)

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