Ajohnson2199 Ajohnson2199

20-05-2015
Mathematics

Answered

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

Answer :

kayblue1712 kayblue1712

20-05-2015

P(Z > z*) = 0.03 has a z* = 1.88

The minimum qualifying score is = 500 + (1.88)(55) = 603.4

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