SOLUTION: Scores on an exam follow an approximately Normal distribution with a mean of 76.4 and a standard deviation of 6.1 points. What is the minimum score you would need to be in the top

Question 840204: Scores on an exam follow an approximately Normal distribution with a mean of 76.4 and a standard deviation of 6.1 points. What is the minimum score you would need to be in the top 4%?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Scores on an exam follow an approximately Normal distribution with a mean of 76.4 and a standard deviation of 6.1 points. What is the minimum score you would need to be in the top 4%?
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Find the z-value with a left-tail of 96%
invNorm(0.96) = 1.7507
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Find the corresponding score:
x = 1.7507*6.1+76.4 = 87.08
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Cheers,
Stan H.
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