Question

What is the highest z-value for the lowest 10% of observations on the standard normal distribution?
PsyDAG
Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the proportion/probability (.10) and relate to the Z score. Remember that, since it is below the mean, it will be negative.
James
-1.2816
John Madden
do you go to QUT?