Bus Rapid Transit (BRT) is a rapidly growing trend in the provision of public transportation in America.
Question:
a. How many models are fit at step 1 of the stepwise regression?
b. How many models are fit at step 2 of the stepwise regression?
c. How many models are fit at step 11 of the stepwise regression?
d. The stepwise regression selected the following eight variables to include in the model (in order of selection): x11,x4,x2,x7,x10,x1,x9, and x3. Write the equation for E(y) that results from stepwise regression.
e. The model, part d, resulted in R2 = .617. Interpret this value.
f. Explain why the CUTR analysts should be cautious in concluding that the best model for E(y) has been found.
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Related Book For
Statistics For Business And Economics
ISBN: 9780321826237
12th Edition
Authors: James T. McClave, P. George Benson, Terry T Sincich
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