Elementary Statistics Departmental Final Exam Part 1 (Form) EmpliD Problem #3 (1

Question

Elementary Statistics Departmental Final Exam Part 1 (Form) EmpliD Problem #3 (12 points) The following scatter plot illustrates the association between College Attainment 25+ year olds with a BA or higher degree) and Median Hourly Wage lin 5) measured States in 2013. (Available at: (percent of for the 50 College Attainment, in % of 2S+ year olds with BA or higher (2 points) a. What does each dot in this scatter plot represent? b. In this model, the explanatory variable is and the response variable is (2 point ircle a reasonable estimate for the value of the correlation coefficient r in this model. 0.135 ll)-0.655 III) 1.35 M 0.702 eason(s) for your choice. 3 poir

Explanation / Answer

a. In the graph each dot represents each data point. (Ans).

b. The explanatory variable is Median Hourly Wage and the

dependent variable is college attainment(in %) of 25 year olds

with a BA or higher. (Ans).

c. From the graph the variables seem to have quite good

positive correlation. So out of given options, the best choice is

Option (iv) 0.702. (Ans).

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