# STAB23H3 Lecture Notes - Lecture 12: Contingency Table, Location Test, Mathematical Notation

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5 Apr 2019
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## Document Summary

Comparing means with dependent samples, contingency tables, and chi- Sample 2; the data are often called matched-pairs data, because of the matching: with matched-pair data, for each pair we form: Difference = observation in sample 1 - observation in sample 2. Researchers want to know whether the mean ability to detect smells differs on whether one is sitting up or lying down - dependent: mean and women each had their sense of smell measured. Researchers want to know whether, typically, men and women differ in their ability to sense smells - Independent: researchers randomly assigned overweight people to one of two diets: weight. Researchers want to known whether the mean weight loss on weight watchers was different from that on atkins - independent: a researcher conducted an experiment to see if specific eye exercises can improve peripheral vision. A random sample of people were rated for peripheral.

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