Life is more than just a sample size. I think in my 40 -year career with the U.S. Environmental Protection Agency, the single question I was asked most was, "What sample size do I need?" Frequendy, the question was asked without any further explanation of the project, evoking my response of, "Sit down, let's talk." I was fascinated, and admittedly disappointed, that the premier reason people consulted with me was merely to ascertain the size of the sample. In fact, usually the sample size was the least of the problem. Let me give an example.
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