Question: Using Abdomen Circumference to Predict Body Fat Figure2.74shows the data and regression line for using abdomen circumference to predict body fat percentage. Figure2.74 Using abdomen

Using Abdomen Circumference to Predict Body Fat

Figure2.74shows the data and regression line for using abdomen circumference to predict body fat percentage.

Figure2.74Using abdomen circumference to predict percent body fat

(a)

Which scatterplot, the one usingWeightin Figure2.73or the one usingAbdomenin Figure2.74, appears to contain data with a larger correlation?

(b)

In Figure2.74, one person has a very large abdomen circumference of about 127 cm. Estimate the actual body fat percent for this person as well as the predicted body fat percent.

(c)

Use Figure2.74to estimate the abdomen circumference for the person with about 40% body fat. In addition, estimate the residual for this person.

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