Using the Body Fat data set with weight as the response variable and chest circumference as the explanatory variable

(a) fit a simple linear regression model relating weight to chest circumference.

(b) create a residual plot for the residuals associated with the fitted model.

(c) create a normal probability plot for the residuals from the fitted model.

(d) assess the validity of the simple linear regression model assumptions.

(e) create a fitted line plot for the simple linear regression model relating weight to chest circumference.

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Percent 99.9 99 95 90 80 70 60 50 40 30 20 10 5 0.1 1 Normal Probability Plot Standardized Residual (a) Percent 99.9 99 95 90 80 70 60 50 40 30 20 10 0.1 1 Normal Probability Plot Standardized Residual (b)