A school requires an entrance exam score that is in the top 3% of the population in order to be accepted. If an entrance exam has a mean of 500 and a standard deviation of 55, what is the minimum qualifying score to be accepted at the school?

396.05
396.60
603.40
603.95

I know how to find Z. Anyone who has answered this question says it is 1.88. When I look on the table I have .51197. What am I doing wrong?

Question

A school requires an entrance exam score that is in the top 3% of the population in order to be accepted. If an entrance exam has a mean of 500 and a standard deviation of 55, what is the minimum qualifying score to be accepted at the school?

 396.05
 396.60
 603.40
 603.95

I know how to find Z. Anyone who has answered this question says it is 1.88. When I look on the table I have .51197. What am I doing wrong?

lexi724 · Answer

this may be of true assistance https://www.easycalculation.com/statistics/standard-deviation.php

anonymous · Answer

How would I plug numbers into this website? (396.05, 986.60, 603.40, & 603.95 are answers to this problem)

anonymous · Answer

I would also like to know how to do it without this website. Seeing as I will need to know for tests.

perl · Answer

can you show me what table you are using?

anonymous · Answer

http://learn.flvs.net/webdav/educator_algebraII_v13/module09/images/09_05_03/standardnormaltable.pdf

perl · Answer

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