Essay
Suppose the proportion of first year students at a particular university who purchased used textbooks in the past year is
and the proportion of second year students at the university who purchased used textbooks in the past year is
.A study found a 95% confidence interval for
-
is (0.237,0.421).Does this interval suggest that first year students are more likely than second year students to buy used textbooks? Explain.
Correct Answer:

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Yes.Since both numbers are pos...View Answer
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Correct Answer:
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