Exercise R5.41 looked at regressions to model calories in breakfast cereals based on their carbohydrates and fiber content. Here is a scatterplot of carbohydrates vs. fiber content for these cereals:

The cereals plotted with green x’s are the three bran cereals in the data. How does this plot help explain the change in the coefficient of carbo seen in Exercise R5.41?

Data From Exercise R5.41

A regression of the calories in breakfast cereals on their carbohydrate content (g) looks like this:

A second regression with fiber content included gives this model: A second regression with fiber content included gives this model:

Transcribed Image Text:

Fiber 0 3 + 6 9 12 X X Carbo X 000000 ****** *** ** ●●● 000 ** ***** .......