please use r code

Question 15 4 points Save Answer An investigator is interested in determining the association between studying in four different academic departments at BU and caffeine intake (in mg/day, continuous variable). She suspects that students in Computer Science Department drink the most caffeine on average. Which analysis is most appropriate for determining if there are differences in mean caffeine intake across the four departments? One sample test for means One sample test for proportions Two sample test for proportions Two sample test for means ANOVA Linear regression Logistic regression