A researcher is interested in the issue of cheating on college campuses. She conducts an anonymous survey about cheating among college freshmen. One survey group included freshmen who live on campus, and the other survey group included freshmen who live off-campus. The standard error formula for the difference between sample proportions is   Calculate the standard error for a survey comparing proportions of cheating of freshmen living on campus to freshmen living off campus, where p1 = 0.20, n1= 130, p2=0.15, n2=117.

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