STAT200 Study Guide - Comprehensive Final Exam Guide - Variance, Sampling Distribution, Confidence Interval
20 Nov 2018
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Introduction: why should you be required to take statistics, voting behavior, medical research, state of economy, ^^ to make sense of all this data, most research depends upon the use of statistics to reach conclusions. Just because you see something in your data, does(cid:374)"t (cid:373)ea(cid:374) it is so . In a sample, estimates could be wrong: what is statistics, science of data, refers to every aspect of how we handle/use data, collecting data, classifying, summarizing, organizing data, analysis of data using summary measure and graphs. Interview: face to face, telephone, self-administered, mail. Internet: observational studies, researcher observes units in their natural setting and records the variables of interest (must deal with a number of methodological issues, focus groups, studies of consumer behavior, wildlife studies in natural habitat. Initial digit in plot: helpful to look at range of variable to decide appropriate stems, add the leaves.
