A researcher conducted a study comparing senior psychology and history majors on their anxiety level before taking the GRE exam. The researcher produced the following CI [0.73, 0.79] for estimating #1-/2. Given this information what can you conclude? O There are no significant group differences on anxiety. O Both psychology and history majors have high anxiety. O Both psychology and history majors have low anxiety. O None of the options. Xnj = 18, #1 = 64.1, 01 = 2.4 no = 24, /2 = 73.4, 07 = 4.3 Using the information above, compute the following: a) SS1 = b) SS, = c) 2 = D