SOLUTION: X is normally distributed with mean 250 and standard deviation 40. What value of X does only the top 15% exceed?

SOLUTION: X is normally distributed with mean 250 and standard deviation 40. What value of X does only the top 15% exceed?

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Question 761765: X is normally distributed with mean 250 and standard deviation 40. What value of X does only the top 15% exceed?
Answer by reviewermath(1029) (Show Source): You can put this solution on YOUR website!
Q:
X is normally distributed with mean 250 and standard deviation 40. What value of X does only the top 15% exceed?
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A:
Enter the formula =normsinv(1-.15)*40+250 into an Excel spreadsheet.
The answer is .
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