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Testing means, part II The paired t-test

Testing means, part II The paired t-test. Outline of lecture. Options in statistics sometimes there is more than one option One-sample t-test: review testing the sample mean The paired t-test testing the mean difference. A digression: Options in statistics. Example.

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686 views • 49 slides

Testing means, part III The two-sample t-test

Testing means, part III The two-sample t-test. One-sample t-test. Null hypothesis The population mean is equal to ? o. Sample. Null distribution t with n-1 df. Test statistic. compare. How unusual is this test statistic?. P > 0.05. P < 0.05. Reject H o. Fail to reject H o.

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739 views • 45 slides

Nonparametric tests and ANOVAs: What you need to know

Nonparametric tests and ANOVAs: What you need to know. Nonparametric tests. Nonparametric tests are usually based on ranks There are nonparametric versions of most parametric tests. Parametric. Nonparametric. One-sample and Paired t-test. Sign test. Mann-Whitney U-test.

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795 views • 40 slides

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Testing means, part II The paired t-test

Testing means, part III The two-sample t-test

Nonparametric tests and ANOVAs: What you need to know