SOLUTION: A psychologist wants to interview subjects with IQ scores in the top 1%. IQ scores are normally distributed with mean of 100 and a standard deviation of 15. Find the score that sep
Algebra ->
Probability-and-statistics
-> SOLUTION: A psychologist wants to interview subjects with IQ scores in the top 1%. IQ scores are normally distributed with mean of 100 and a standard deviation of 15. Find the score that sep
Log On
Question 465433: A psychologist wants to interview subjects with IQ scores in the top 1%. IQ scores are normally distributed with mean of 100 and a standard deviation of 15. Find the score that separating the top 1% of IQ from the bottom 99%. Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! A psychologist wants to interview subjects with IQ scores in the top 1%. IQ scores are normally distributed with mean of 100 and a standard deviation of 15. Find the score that separating the top 1% of IQ from the bottom 99%.
--------------------------
Find the z-value with a left-tail of 0.99.
invNorm(0.99) = 2.3263
----
score = 2.3263*15 + 100 = 135 when rounded up
===================================
Cheers,
Stan H.
(