SOLUTION: Human IQ scores are approximately normally distributed with the mean 100 and standard deviation 15. determine the minimum iq scores for the top 5 % of the population

Question 322560: Human IQ scores are approximately normally distributed with the mean 100 and standard deviation 15. determine the minimum iq scores for the top 5 % of the population
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Human IQ scores are approximately normally distributed with the mean 100 and standard deviation 15. determine the minimum iq scores for the top 5 % of the population
-----------------------------
Find the z-score with a left tail of 0.95
----
invNorm(0.95) = 1.645
----
Find the corresponding x-score using x = zs +u
---
x = 1.645(15) = 100
---
x = 124.675
===============
Cheers,
Stan H.
===============
RELATED QUESTIONS
Given IQ scores are approximately normally distributed with a mean of 100 and standard... (answered by Boreal)

IQ scores of adults are normally distributed with a mean of 100 and a standard deviation... (answered by stanbon,ewatrrr)

B)If IQ scores are normally distributed with a mean of 100 and a standard deviation of... (answered by ewatrrr)

Assume that adults have IQ scores that are normally distributed with a mean of 100 100 (answered by richwmiller)

Adult IQ scores are normally distributed with a mean of 100 and a standard deviation of... (answered by Boreal)

IQ scores are normally distributed with a mean of 100 and a standard deviation of 15. If... (answered by stanbon,edjones)

IQ scores are normally distributed with a mean of 100 and a standard deviation of 15. If... (answered by edjones)

Suppose standard IQ scores are known to be normally distributed with mean of 100 and... (answered by stanbon)

IQ scores are normally distributed with a mean of 100 and a standard deviation of 12.... (answered by Boreal)