Back to campus again Suppose ACT, Inc. wants to update their information from Exercise
Chapter 18, Problem 28(choose chapter or problem)
Back to campus again Suppose ACT, Inc. wants to update their information from Exercise 26 on the percentage of freshmen that return for a second year of college. a) They want to cut the stated margin of error in half. How many college freshmen must be surveyed? b) Do you have any concerns about this sample? Explain.
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