Today, I was going through results of a survey when a colleague asked me, what is the statistical significance of the population cohorts in this survey.
I wanted to understand if anyone here could explain, what such a question as mentioned above would actually mean? I mean, it got me thinking and I was not able to reframe my colleague's answer in a way that would lead me to testing statistical significance.
So, let us say a population is made up of 4 segments namely - A,B,C,D. Now, if we take a sample out of this population with the 4 segments having certain sample sizes - how do we determine if these samples sizes are statistically significant. Does such a question even make sense to begin with.