Statistical Sciences 1024A/B Lecture Notes - Lecture 10: Simple Random Sample, Sampling Distribution, Statistical Inference
19 Oct 2016
School
Department
Professor
Document Summary
Module 10 inference in practice ( & p) The goal of statistical inference is to draw conclusions about the population based on sample results. We know that results based on ones ample won"t represent the truth about a population exactly, and, that if we drew another sample of the same size from the population, we would end up with different results. If we know how x or p behaves from sample to sample, then we have some idea about how close the x or p based on our sample will be to or p. The last condition in particular is extremely unrealistic in practice. The population standard deviation is based on all n units in the population. X in the population to know , then shouldn"t be unknown we could just add up all the values of x in the population and divide by n to obtain .
