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A sample of 35 two-year colleges in 2012-2013 had a mean tuition (for in-state undergraduate students)...

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Basic Math

A sample of 35 two-year colleges in 2012-2013 had a meantuition (for in-state undergraduate students) of $2918. The truestandard deviation of the tuition for these schools is known to be$1079.

Calculate a 90% confidence interval for the average in-statetuition of all two-year colleges in 2012-2013.

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Solution Given thatPoint estimate sample mean 2918Population standard deviation    See Answer
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