A researcher is investigating possible explanations for deaths in traffic accidents. He examined data from 2000 for each of the 52 cities randomly selected in the US. The data included information on the following variables:

Deaths: The number of deaths in traffic accidents per city

Income: The median income per city

As part of his study, he ran the following simple linear regression model:

Deaths =?0+?1(Income)

This model was fit to the data using the method of least squares. The following results were obtained from SAS:

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