# CH 13 QUIZ - GB 303 Fall 2011 Name: _ Section No. _ Quiz 9...

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GB 303 Fall 2011 Name: __________________________________ Section No. ___________ Quiz 9 (Chapter 13 Covered) MULTIPLE CHOICE: Choose the one alternative that best completes the statement or answers the question. 1. If the correlation coefficient (r) = 0, then A) the Y-intercept (b0) must equal 0. B) the explained variation equals the unexplained variation. C) there is no unexplained variation. D) there is no explained variation. Answer: 2. The residuals represent A) the difference between the actual Y values and the mean of Y. B) the difference between the actual Y values and the predicted Y values. C) the square root of the slope. D) the predicted value of Y for the average X value. Answer: 3. The Y-intercept ( b 0 ) represents A) the predicted value of Y when X=0. B) the estimated average change in Y per unit change in X. C) the predicted value of Y. D) the variation around the sample regression line. Answer: 4. The slope (b1) represents A) the predicted value of Y when X = 0. B)

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## This note was uploaded on 02/07/2012 for the course GEN BUS 303 taught by Professor Mullins during the Spring '08 term at University of Wisconsin.

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CH 13 QUIZ - GB 303 Fall 2011 Name: _ Section No. _ Quiz 9...

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