A researcher is interested to see if having a college degree results in higher incomes. She knows the average income for the general population (in thousands) is u = 39.1, with a standard deviation of o = 4.6. She collects a sample of 36 college graduates (N) and determines that their average sample income is xbar = 42.3, with a standard deviation of Sx = 3.9 (6 points). A) Please calculate and report the appropriate statistic, showing all your steps. B) Based on an alpha = .05. the critical values are +/- 1.96, should you retain or reject the null hypothesis? C) Would the p-value be bigger or smaller than alpha? D) Please calculate, report, and interpret the appropriate standardized effect size (Cohen's d) for these data. Hint: Is this a small, medium, or large effect? E) In everyday language, what do these results tell you about the research question? What can we conclude about college degrees and income