Refer to the scenario described in Problem 10 and the file BlueOrRed. Partition the data into training
Question:
a. From the generated set of logistic regression models, select one that you believe is a good fit. Express the model as a mathematical equation relating the output variable to the input variables.
b. Increases in which variables increase the chance of a voter being undecided? Increases in which variables decrease the chance of a voter being decided?
c. Using the default cutoff value of 0.5 for your logistic regression model, what is the overall error rate on the test data?
d. Examine the decile-wise lift chart for your model on the test data. What is the first decile lift? Interpret this value.
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Related Book For
Essentials of Business Analytics
ISBN: 978-1285187273
1st edition
Authors: Jeffrey Camm, James Cochran, Michael Fry, Jeffrey Ohlmann, David Anderson, Dennis Sweeney, Thomas Williams
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