CHAPTER 6
USE 2 DECIMALS TO REPORT X VALUES
USE 4 DECIMALS TO REPORT P VALUES
SHOW YOUR WORK

Given a set of normally distributed scores with  = 20 and a  = 6, what percentage of scores is…

24.5 or higher?



between 10.13 and 28.55?


20 or lower?




Between 22 and 25?


What z score(s) corresponds to…

the 40tth percentile?


the 65th percentile?


The 70th percentile?



The middle 50%?



The middle 60%?