Z Score
7.711357
0.826565
-0.48562
-1.55803
I have the following Z scores
To find the P-value in Excel I am using
=1-NORMSDIST(Z location)
Is this usage right????
When I use this I get values like 1.00253E-13 for a z score of 7.348469
for some Z scores I am getting a p-value of zero
Please help me get this right
Regards
It looks right but I would wonder if my data is actually normally distributed if I get values that are getting Z scores in the 7 range unless there are more than 1.E13 observations. When you get 7 standard deviations from the mean in a normal distributions there is not much left in the tails.
Thanks a lot for the reply.
I have posted the same question on several places in the SAS Forum. Sorry about that. steve posted a detailed discussion on this topic
https://communities.sas.com/message/146263#146263
Regards
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