M mb 5 t a m a m b equations 4 and 5 can be

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Unformatted text preview: MB. (Eq. 4 is the only formula you have to remember here; the rest is just to help it make sense.) % ( (4) " M A # M B = MS $ ' n1 + n1 * &A B) Independent ­samples t statistic. The t statistic for an independent ­samples t ­test measures how far apart the two sample means are, relative to how far apart they could be expected ! to be by chance. The first part of this, the distance between the sample means, is just MA – MB. The second part, the distance that could be expected by chance, is the “typical” difference ex...
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