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One Sample T-tests. Estimated Standard Error Region of Rejection and Retention Determining whether or not to reject the null depends on where the obtained.

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Presentation on theme: "One Sample T-tests. Estimated Standard Error Region of Rejection and Retention Determining whether or not to reject the null depends on where the obtained."— Presentation transcript:

1 One Sample T-tests

2 Estimated Standard Error

3 Region of Rejection and Retention Determining whether or not to reject the null depends on where the obtained t value falls within the t-distribution – A t score that is close to 0 will likely be in the region of retention – A t score that is far from 0 will likely be in the region of rejection

4 Directional Tests One tailed tests place the entire region of rejection in a single tail Two tailed tests divide the region of rejection into portions for each tail

5 t-Distributions The shape of the t-distribution changes depending upon the size of your sample


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