Which of the following statements provides the best guidance for model building?
A) If the value of r2 increases as more variables are added to the model, the variables should remain in the model, regardless of the magnitude of increase.
B) If the value of the adjusted r2 increases as more variables are added to the model, the variables should remain in the model.
C) If the value of r2 increases as more variables are added to the model, the variables should not remain in the model, regardless of the magnitude of the increase.
D) If the value of the adjusted r2 increases as more variables are added to the model, the variables should not remain in the model.
E) None of the statements provide accurate guidance.
B
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A) $2,040 B) $5,940 C) $5,100 D) $3,060
Building some over-capacity in the supply chain network and making the capacity flexible allows a firm to alter production flows within the supply chain to
A) produce less in facilities that have a lower cost based on current exchange rates. B) produce more in facilities that have a lower cost based on current exchange rates. C) produce more in facilities that have a higher cost based on current exchange rates. D) produce less in facilities that have the same cost based on current exchange rates.
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Information systems are composed of ________
A) virtual objects B) real objects C) any object D) computer objects