True or false: Testing “Is there a linear relationship between X and Y?” is equivalent to testing “Can X be used to predict Y?”.
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What is the explanatory variable in this study being conducted by the forest service official?
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On the basis of the scatterplot, what type of relationship exists between diameter and volume of wood?
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What is the sum of squared residuals for the least squares line?
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What is the value of slope for this least-squares regression line?
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What do we need in order to test whether the least-squares regression line is useful for prediction?
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True or false: If the test on whether X can be used to predict Y is significant, then any prediction made using the least-squares regression line will not have any error.
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