Do you mean a random sample, or some other type of sample? If random, I'm sure the sample differs in some small way from the population. What I am struggling with is why this is even a question at all. From a statistical point of view, I can't recall seeing an example (or a reason) to test if a random sample differs from the entire population.
Yes, this is a random sampling using Proc Survey. We expect the sample to be some how different from the population but not completely because it will lose some of the characteristics of the population
Explain this. Why don't you understand? What about it don't you understand? Is it that you don't understand KS (which is a different question than what SAS is doing)? I don't think SAS builds in any assumptions that are not in the definition of a KS test.
I mean what are the calculations behind the npar1way since for many functions there are alternative ways to do the same thing. For example, in some functions i have seen they use only continuous variables
Again, did you plot the data and take a look at the graphics? Does the KS calculations make sense from what you can see in the plot? If it doesn't make sense, show us and explain.
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