Chl-Square

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Fg07

Humanities

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The purpose of this discussion is to allow you to consider how various non-parametric tests are used and how they compare to other tests with similar variables. To do this, you will need to identify the appropriate application of course-specified statistical tests, examine assumptions and limitations of course-specified statistical tests, and communicate in writing critiques of statistical tests. • • • Describe the chi-square goodness-of-fit test. Provide a detailed explanation of what this test measures, and how it is similar to and different from the independent t-test and the chi-square test of independence. How do you know when to use one analysis over the other? Provide a real-world example.
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Describe the chi-square goodness-of-fit test.

This is a nonparametric test normally used in a situation where one variable and a nominal data
are present. If I am to understand the text correctly, the question this test helps answer is whether
observed differences are greater than would occur simply by chance. In general Chi-square is a
test of whether the observed frequency of values differs from its expected frequency. In the case
of goodness of fit tests the expected frequency is supplied (e.g. a table of values that come from a
statistical model of some kind) and ...


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