Estimate proportion of all freshmen at university

Reference no: EM131014742

In a sample of 200 freshmen at a state university, 40% report that they work at least 20 hours a week while in school. Estimate the proportion of all freshmen at the university working at least 20 hours per week. Develop your estimate on the basis of a 95% con?dence interval.

Reference no: EM131014742

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