SOLUTION: A normal distribution has a mean of 80 and a standard deviation of 14. Determine the value above which 80% of the values will occur. (Round z-score computation and your final

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Question 1030723: A normal distribution has a mean of 80 and a standard deviation of 14.

Determine the value above which 80% of the values will occur. (Round z-score computation and your final answer to 2 decimal places.
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
: A normal distribution has a mean of 80 and a standard deviation of 14.
Determine the value above which 80% of the values will occur. (Round z-score computation and your final answer to 2 decimal places.
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Find the z-score with a left tail of 0.20
invNorm(0.20) = -0.8416
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Ans: x = z*s + u
x = -0.8416*14 + 80 = 68.22
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Cheers,
Stan H.
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