1) Is this an observational study or an experimental study? Can we generalize the results of this study to a different state in the United States? (4 points) 2) Using SPSS, create a scatterplot of the Math score and % Minority variables for Grade 3 students. Similarly, obtain a scatterplot of the Reading score and % Poverty variables for Grade 4 students. Paste the SPSS Output into the report. Describe the pattern and strength of any association that may be detected between the two variables in each of the scatterplots. Which relationship is stronger? (6 points) 3) Refer to the scatterplot (in question 2) of Math score versus % Minority for Grade 3. Are there any "high leverage" points? If there are, identify those points. (2 points). 4) Refer to question 3. Perform a t test manually (with backup SPSS output if desired) to see whether there is a significant negative correlation between Math Score and % Minority for Grade 3 students. (Answer this question in terms of null and alternate hypotheses, the corresponding test statistic, the comparison distribution, and the conclusion.) (10 points) Suppose you want to fit a model to predict the % of minority students based on the Math score. Is a straight line a reasonable model? Explain your answer. (1 Point) Assuming that a linear regression model is appropriate, what is the general linear regression model? (1 point) 6) What are the basic assumptions of a Simple Linear Regression Model? (3 points)