A nutritionist wants to understand the influence of income and healthy food on the incidence of smoking.

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A nutritionist wants to understand the influence of income and healthy food on the incidence of smoking. He collects 2009 data on the percentage of smokers in each state in the U.S. and the corresponding median income and the percentage of the population that regularly eats fruits and vegetables. A portion of the data is shown in the accompanying table.

A nutritionist wants to understand the influence of income and

a. Estimate: Smoke = β0 + β1 Fruits/Vegetables + β2 Median Income + ε.
b. Compare this model with a model that log trans forms the median income variable.

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