GSB 420 A. During the last decade, the average score of the quantitative portion of the Graduate Record Examination (GRE) General Test is known to be 588. In order to compare the GRE scores of DePaul MBA students with this national average, the scores of 30 DePaul MBA students were randomly selected and tabulated. Their average turns out to be 602 with a standard deviation of 27. Verify if the average score of DePaul MBA students is the same as the national average at the 5% significance level 1. via the confidence interval approach. (5 points) 2. via the critical value approach. (5 points) 3. via the p-value approach. Use the Excel to calculate the p-value. (5 points) B. The Illinois Wildlife Society has been tagging deer population in Illinois to determine their annual growth rate. Based on this effort, the society knows that the annual growth rate is 3%. To verify the growth rate for this year, the society took a sample of 1,000 deer and found 37 newly born ones. Do you think the society's 3% growth rate can be supported by this sample data? Use the confidence interval approach at the 10% significance level to answer this question. (5 points)