Mathematics, 25.12.2019 18:31 bellaisbored202

Astudy reports that freshmen at public universities work 10.2 hours a week for pay, on average, and the sd is 8.5 hours; at private institutions, the average is 8.1 hours and the sd is 6.9 hours. assume these data are based on two independent simple random samples, each of size 1000. is the difference between the averages due to chance? if not, what else might explain it?

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