Posted by **shannen** on Monday, October 19, 2009 at 11:27am.

Assume that the salaries of elementary school teachers in the United States are normally distributed with a mean of $34,000 and a standard deviation of $2000. What is the cutoff salary for teachers in the bottom 10%?

- statistic -
**jim**, Monday, October 19, 2009 at 4:50pm
Find a Percentile to Z-Score Calculator. You can Google one, and likely there's a table of this in your text.

That'll tell you how many SD below the mean you have to go.

I make it about -1.28 standard deviations, so that'll be about 34,000 - (1.28 * 2000)

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**vickey**, Wednesday, August 4, 2010 at 10:06am
Assume that the salaries of elementary school teachers in the United States are normally distributed with a mean of $34,000 and a standard deviation of $2000. What is the cutoff salary for teachers in the bottom 10%?

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**Sam**, Thursday, April 19, 2012 at 10:52pm
Answer: 31,440

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