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# IN CHOOSING THE &QUOT;BEST­FITTING&QUOT; LINE THROUGH

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Author: Christine Farr
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Question 1 (2 points)In choosing the "best­fitting" line through a set of points in linear regression, we choose the one with the: Question 1 options:smallest sum of squared residualslargest sum of squared residualssmallest number of outlierslargest number of points on the lineSaveQuestion 2 (2 points)In linear regression, a dummy variable is used:Question 2 options:to represent residual variablesto represent missing data in each sampleto include hypothetical data in the regression equationto include categorical variables in the regression equationSaveQuestion 3 (4 points)A multiple regression analysis included 4 independent variables results in sum of squares for regression of 1400 and sum of squares for error of 600. The multiple coefficient of determination will be:Question 3 options:.300.700.429.084SaveQuestion 4 (2 points)A "fan" shape in a scatterplot indicates:Question 4 options:

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