It has been reported that the average American male consumes 3774 calories per day and that 72.2% of American males are overweight. This information, along with data for seven other countries, is listed below.

a. Determine the least-squares regression line for predicting the percentage of males who are overweight based on the number of calories consumed per day.
b. Calculate and interpret the values of r and r2.
c. If a nation€™s males were to consume an average of 3000 calories per day, what would be the predicted percentage of the nation€™s males who are overweight?

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Calories per Day 2114 2951 2754 3338 3412 2459 3145 3774 Country China Ecuador Egypt Great Britain India % Overweight 10.4 27.5 40.2 64.5 62.5 15.0 64.6 72.2 United States