John and Anna entered a giant pumpkin contest. John's three pumpkins weighed 2n + 1.2 pounds each. Anna's six pumpkins weighed 30-4 pounds each. The total weight of John's 3 pumpkins was the same as the total weight of Anna's six pumpkins. This situation can be expressed with the equation below. (2n + 1.2) + (2n+ 1.2) + (2n + 1.2) = (3n-4) + (30-4) + (3n-4) + (3n-4) + (30-4) + (30-4) What value of n makes this equation true?

Two researchers are attempting to create a new psychotherapy protocol that more reduces panic attacks. they believe that they have succeeded and are now in the clinical trial period of their protocol's development. they are working with several cohort groups, some of which have been through the new protocol, while others have done the standard protocol currently recommended. if these researchers are interested in evaluating the difference in the percentage of test subjects who successfully decreased their panic attacks in 2 months on the new protocol versus the percentage of test subjects who successfully decreased their panic attacks in 2 months with the traditional protocol, which of the following statistical tests would be most appropriate? a. analysis of variance (anova) b. correlation c. chi-square test d. paired t-test e. independent t-test