Laura wanted to build a multiple regression model based on , Ask an Expert

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Laura wanted to build a multiple regression model based on advertising expenditures and Coffee Time's price index. Based on the selection of all normal values, she obtained the following:

Multiple R = 0.738
R-Square = 0.546

By using lagged values, she came up with the following:

Multiple R = 0.755
R-Square = 0.570

Explain the differences in using these different models and how can the model be improved

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Statistics and Probability, Statistics

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