7. Dr. X found that students who come from a wealthy income bracket had, on average, higher GPAs than students who came from a lower income bracket. On average, the difference was about .8 on a 4-point GPA scale. The p-value for this study was <.05. Explain what it means to have a p-value of <.05 in this study. Is this study important (Note: "Importance" here is defined as the study which has a greater magnitude of effect.)? Explain your answer.