STA 261 Study Guide - Midterm Guide: Box Plot, Confounding
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Stratified- split into f/s/j/s and those are the strata. Cluster- if you took a high school then split everyone into homerooms, then you randomly select homerooms srs of a cluster, and then take a. On average, scores differ 5 std. devs from the mean . Might have to do binomial by hand (only) find out what p is. Lurking vs. confounding variable lurking- not included in the study but influences the results, you don"t know its there confounding- something in your study that influences the results, and you can"t tell what influences thee results. You"re confused, you don"t know what is effecting your results. (poorly designed study box plot= graph of study min q1 median q3 max cumulative probability normal calc, standard, mean=0, std dev=1, p(x) less than or equal to z score. Take the number it equals to and subtract it from 1.
