# stastics

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Salaries of 31 college graduates who took
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 -

66700 -1.645* 17120/sqrt((31)) =

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

( , )?

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