Short Answer
Suppose that a sample of n = 12 pairs of X and Y scores has SS? = 90 and a Pearson correlation of r = +0.40.
a.What proportion of the variance for the Y scores is predicted by the regression equation?
b.Does the regression equation predict a significant portion of the variance? Test with ? = .05.
Correct Answer:
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a.r² = 0.16 or 16%
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Correct Answer:
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b...
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