Question: Assume the World Health Organization believes that physician access has an effect on life expectancy. A research analyst with this organization regresses life expectancy and people per physician for 32 countries (using the data in sheet 5 on the data disk). The regression generates the following:

\(\hat{Y}=72.11-0.0018 x\), with a standard error of the slope of $1.15$. The \(r^{2}=47.4\) percent.

1. is there a relationship between life expectancy and physician access?
2. What is the predicted life expectancy for a country that has 3,500 people per physician?

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