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December 20, 2014

Homework Help: statistics

Posted by Bulldog 42 on Thursday, July 2, 2009 at 11:37pm.

President Obama wants to provide aid to people who are having a rough time.

Year 2007 $13,182 (mean salary) = x bar
$3,550 = standard deviation

President Obama wants to give money to the lowest 15% from the rest of the population.

What income level will receive the stimulus money?

Using a financial calculator I come up with an answer that is $9,490 but I would like to know how and what the z-factor is using a normal distribution chart.

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