Question
The weights of adult males are normally distributed with a mean of 172 lb and a standard deviation of 29 lb.
1.Find the weight that divides the upper 2% of weights from the lower 98%.
Can anyone please explain how to do this,I have no idea from where to begin.
Thanks.
1.Find the weight that divides the upper 2% of weights from the lower 98%.
Can anyone please explain how to do this,I have no idea from where to begin.
Thanks.
Answers
PsyDAG
Z = (score-mean)/SD
Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the Z score that fits that proportion.
Insert values in above equation to find weight score.
Find table in the back of your statistics text labeled something like "areas under normal distribution" to find the Z score that fits that proportion.
Insert values in above equation to find weight score.