Refer to Exercise 12.13 and data set EX1213 regarding the relationship between the Academic Performance Index (API), a measure of school achievement based on the results of the Stanford 9 Achievement test, and the percentage of students who are considered English Learners (EL). The following table shows the API for eight elementary schools in Riverside County, California, along with the percentage of students at that school who are considered "English Learners" (EL).3

a. Use an appropriate program to analyze the relationship between API and EL.
b. Explain all pertinent details of your analysis.

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School 12 3 4 5 67 8 AP 745 808 798 791 854 688 801 751 EL 71 18 24 50 7 71 11 57