1. 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: fat mean = 20.6g, stdev fat = 9.8g, calorie mean = 472.7, stdev calories
=144.2, correlation between the two was 0.947.
a) Describe the asscociation.
b) Write the equation of the regression line.
c) Explain the meaning of the slope
d) Explain the meaning of the y-intercept
e) Predict the calories for a sandwich with 35g of fat.
How many grams of fat would you expect a sandwich with 350 calories to haver
g) What does it mean if a sandwich has a negative residual?