Specically, parents in the fruit drink counter-marketing group decreased their virtual purchases of these drinks by 31% compared to the control group, and by 43% by the group receiving the combined messages. The source article (in the American Journal of Public Health) also summarizes the mean fruit drink consumption for children by treatment group at the beginning of the study and the end of the study. Using the following information, answer the questions below. (It is not necessary to read the source article to answer the questions.) Among 539 children in the group assigned to receive counter-messaging for fruit drinks, at the beginning of the study, the mean fruit drink consumption was 2.7 ounces per day with a 95% condence interval of 2.2 ounces/day to 3.1 ounces/day. At the end of the study, the mean was 1.7 ounces/day with a 95% CI of 1.3 ounces/day to 2.0 ounceslday. 3) b) d) [*1 point] Is the mean fruit drink consumption among the counter-messaging group at the end of the study statistically signicantly different from 0 at the 0.05 level? Briey explain your answer. [fyou wanted to evaluate whether, among the counter-messaging group, mean fruit drink consumption decreased from the beginning of the study to the end of the study, which would be the most appropriate test? (Choose the best answer) i) One sample test of proportion ii) Chi-square test with 545 degrees of freedom iii) Paired t-test iv) Two sample ttest Approximately what is the standard deviation of fruit drink consumption among children in the counter-messaging group at the beginning of the study? (Choose the best answer.) i) 0.4 ounces/day ii) 5.2 ounces/day iii) 50 ounces/day iv) 120 ounces/day Ifyou wanted to do a paired ttest to evaluate whether, in the counter-messaging group, mean fruit drink consumption decreased from the beginning of the study to the end of the study, what information would you need that is not provided above? [*1 point] If you wanted to evaluate whether counter-messaging, compared to control, decreases mean fruit drink consumption, which would be the most appropriate test? (Choose the best answer) i) One sample test of proportion ii) Chi-square test with 545 degrees of freedom iii) Paired ttest iv) Two sample ttest