When a researcher has an accidental or convenience sample, what kind of population can he or she try to make inferences about?
Answer to relevant QuestionsDescribe the guidelines for selecting an appropriate bivariate statistic. That is, what do you need to ask about the nature of the data and the research design in order to choose an appropriate analysis? For what types of data would you use nonparametric versus parametric statistics? In your own words, what does an SS tell us about a set of data? Under what circumstances will the value of SS equal 0? Can SS ever be negative? Why do reported or "nominal" p values often seriously underestimate true risk of Type I error? What factors influence the magnitude of risk of Type II error?
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