Concept explainers
Student loans: The Institute for College Access and Success reported that 68% of college students in a recent year graduated with student loan debt. A random sample of 85 graduates is drawn.
Find the mean
Find the standard deviation
Find the
Find the probability that between 65% and 80% of the people in the sample were in debt.
Find the probability that more than 75% of the people in the sample were in debt.
Would it be unusual if less than 65% of the people in the sample were in debt?
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Chapter 7 Solutions
Elementary Statistics ( 3rd International Edition ) Isbn:9781260092561
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