Homework Help!

philly4life553

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I need help on a homework problem.

For the most recent year available the mean annual cost to attend a private university in the United States was $20,182. Assume the distribution of annual costs follows a normal probability distribution and the standard deviation is $4,400. Ninety-nine percent of all students at private universities pay less than what amount?
 
philly4life553 said:
I need help on a homework problem.

For the most recent year available the mean annual cost to attend a private university in the United States was $20,182. Assume the distribution of annual costs follows a normal probability distribution and the standard deviation is $4,400. Ninety-nine percent of all students at private universities pay less than what amount?

Find the z-score of the distribution. Then find your answer using the table for z-score.

Please show us your work, indicating exactly where you are stuck - so that we may know where to begin to help you.
 
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