Find the probability that a randomly selected individual earned less than $24,000.

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The average annual salary in Pennsylvania was $25,000 in 1992. Assume that salaries were normally distributed for a certain group of wage earners, and the standard deviation of this group was $3,000. 

Find the probability that a randomly selected individual earned less than $24,000.

Nov 6th, 2015

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Nov 6th, 2015
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Find the probability that for a randomly selected sample of 10 individuals, the mean salary was less than $24,000.

Nov 6th, 2015

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Nov 6th, 2015

???

Nov 6th, 2015

can u plz help

Nov 6th, 2015

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Nov 6th, 2015
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