13. English as a Second Language The state of California monitors the progress of students whose native language is not English using the California English Language Development Test.28 Test results for two school districts in Riverside, California for the 2016–17 school year that follow gives the number of 8th graders tested, and the proportion judged as Advanced or Early-Advanced in English proficiency.

Does the data provide sufficient evidence to indicate that there is a difference in the proportion of students in the two districts who are Advanced or Early-Advanced in English proficiency? Use a5.01.

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District Riverside Unified Alvord Unified Number Tested Proportion 375 439 .55 .66