The sign of the t ratio only becomes important to the statistical decision when

Name: The sign of the t ratio only becomes important to the statistical decision when
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Question

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The sign of the t ratio becomes important in a one-tail t test because the alternative hypothesis is directional, and we are only interested in one tail of the distribution. In a two-tail test, we are interested in both tails of the distribution, so the sign of the t ratio is less important.

The Sign of the T Ratio Only Becomes Important to the Statistical