Question: Chicken. Chicken sandwiches are often advertised as a healthier alternative to beef because many are lower in fat. Tests on 11 brands of fast-food chicken sandwiches produced the following summary statistics and scatterplot from a graphing calculator:

1. Do you think a linear model is appropriate in this situation?
2. Describe the strength of this association.
3. Write the equation of the regression line.
4. Explain the meaning of the slope.
5. Explain the meaning of the \(y\) -intercept.
6. What does it mean if a certain sandwich has a negative residual?
7. If a chicken sandwich and a burger each advertised 35 grams of fat, which would you expect to have more calories (see Exercise 63)?

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