What is "z statistic"?
What is a Z score meant to tell me???
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[Question] What is "z statistic"?
I am currently in my first statistics class and came upon z statistic. I can't ask my teacher because he is on vacation and as far as I know it isn't in the textbook. We never covered it in class. I am quite certain it is not a z-score;I am given a population only.
For part of my assignment I need to calculate the z scores on the skewness and kurtosis numbers given on some SPSS data and I need to interpret the score I calculate. But I'm struggling to understand what a z score in this context is meant to tell me?
The information I can find is focused on what Z scores tell you when you do the calculations on the participants data itself, I can't find anything on what it's supposed to tell you when it comes to normality distribution.
Does anyone know??? I've been at this for so long I'm debating dropping out of uni😆