psci3300h6 - Homework#6(Regression POS 3713 Spring 2007(Dr...

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Unformatted text preview: Homework #6 (Regression) POS 3713 - Spring 2007 (Dr. Hensel) This homework assignment is due at the beginning of class (i.e., before lecture starts) on Thursday, April 19 . Any work turned in after lecture begins that day (even if only a few minutes into class) will be assessed a late penalty. Also, note that all work must be your own -- students found to have copied their answers from other students (or to have had their answers copied by other students) will receive automatic zero grades on this assignment, and may face further disciplinary action. Be sure to show your work wherever relevant; correct answers that do not show their work will only receive half credit. The frst fve questions involve the Following analysis oF the weight oF various car models (the independent variable) and their miles per gallon (the dependent variable): N = 74; ! X = 223.44; ! Y = 1576; ! X 2 =718.76; ! Y 2 = 36,008; ! XY = 4493.72 Means: X (weight) = 3.02, Y (MPG) = 21.30 1. Based on the results of this scatterplot, what can you say about the apparent strength and direction of 1....
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This note was uploaded on 10/11/2011 for the course POS 3300 taught by Professor Paulhensel during the Fall '11 term at North Texas.

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psci3300h6 - Homework#6(Regression POS 3713 Spring 2007(Dr...

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