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1 - (R)e-introduction to statistics

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The previous material served to get us started in R and to get a quick review of same basic descriptive statistics. Now we will begin to engage some new material and exploit the power of R to do some statistical inference. Because inference is one of the hardest topics to master in statistics, we will also review some basic terminology that is required to move forward in learning more sophisticated statistical methods. To keep this "review" as short as possible, we will not consider every situation you learned in introductory statistics and instead focus exclusively on the situation where we have a quantitative response variable measured on two groups.