SOLUTION: Suppose that X is normally distributed with mean 125 and standard deviation 22.
What value of X does only the top 15% exceed?
X =
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Question 1138204: Suppose that X is normally distributed with mean 125 and standard deviation 22.
What value of X does only the top 15% exceed?
X =
Answer by rothauserc(4718) (Show Source): You can put this solution on YOUR website!
The z-score associated with a probability of 85% is 1.04
:
1.04 = (X - 125)/22
:
X - 125 = 22.88
:
X = 147.88
:
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Therefore, the top 15% exceed 147.88
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