An investigator is interested in determining the association between caffeine intake (in mg/day, continuous variable) and productivity. The outcome/response is assessed by asking each subject if they feel like they have been productive with a response of yes or no. Which analysis is most appropriate for assessing this association? \" One sample test for means \" One sample test for proportions \" Two sample test for means '\\ ANOVA '\\ Two sample test for proportions \" Logistic regression ' Linear regression