Coursepack, p. 747 MAT 133: Sample Final Exam, p.3 4) The following boxplots display the distributions of percentage of a state's residents who are Hispanic, classified by region of the country (West, South, Northeast, Midwest): Region a) Which region has the highest median among their percentage Hispanic? West b) Which region has the state with the highest percentage Mexican? South H c) which region has the lowest Q3 among their percentage Mexican? Northeast- d) Which region has the largest IQR? Midwest e) Approximately what is the percentage Mexican of the highest state in the Midwest? 10 15 20 25 30 35 Percent 40 40 f) Approximately what is the second quartile percentage Mexican for the West? g) Approximately what percent of the states in the West are below 12% Mexican? h) Describe the shape of the distribution for each of these regions (Circle one) Skewed Left Symmetric Skewed Right 45 50 i) Based on your answer from part h), which would be the best measures of center and spread to report? (Circle one pair) Mean and IQR Median and IQR Mean and Standard Deviation Median and Standard Deviation 5) Shortly after the World Trade Center towers were destroyed by terrorists, America Online ran an online poll of its Internet subscribers and asked this question: "Should the World Trade Center towers be rebuilt?" Among the 1,304,240 responses, 768,731 answered "yes", 286,756 answered "no", and 248,753 said that it was "too soon to decide." Given that this sample is extremely large, can the responses be considered to be representative of the population of the United States? Explain.