Question: Researcher have noted a decline in cognitive functioning a people age ( Bartus, 1990). However, the results from other research suggest that the antioxidants in foods such as blueberries may reduce and even reverse these age- related declines (Joseph et al., 1999). To examine this phenomenon, suppose that a researcher obtains a sample of n = 16 adults who are between the ages of 65 and 75. The researcher uses a standardizd test to measure cognitive performance for each individual. The participants then begin a 2 –month program in which they receive daily does of a blueberry supplement. At the end of the 2 month program, the researcher again measures cognitive performance for each participant. The results show an average increase in performance of MD = 7.4 with SS = 1215. Does this result support the conclusion that the antioxidant supplement has a two- tailed test with a=.05.