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April 2, 2015

April 2, 2015

Posted by **anonymous** on Friday, November 15, 2013 at 11:06am.

a course in college have a mean, x of

66,700 a standard deviation , o of 17,120, construct a 90% confidence interval for estimating the population

mean u.

- stastics -
**Kuai**, Friday, November 15, 2013 at 11:54am66700 -1.645* 17120/sqrt((31)) =

66700 +1.645* 17120/sqrt((31)) =?

( , )?

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