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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
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 0.8 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.
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