Exercise 7.15 introduces data on shoulder girth and height of a group of individuals. In the data set, the minimum shoulder girth is 87 cm and the maximum shoulder girth is 134 cm. The mean shoulder girth is 105.87 cm with a standard deviation of 10.13 cm. The mean height is 173.14 cm with a standard deviation of 9.01 cm. The correlation between height and shoulder girth is 0.695.
a) Write the equation of the regression line for predicting height.Slope (round 3 decimal places):
c) Calculate R2R2 of the regression line for predicting height from shoulder girth. Round to three decimal places
Interpret R2R2 in the context of the application.
A. About 100*(R2R2)% of the variability in height is accounted for by the model, i.e. explained by the shoulder girth
B. About 100*(R2R2)% of the variability in shoulder girth is accounted for by the model, i.e. explained by the height
C. About 100*(R2R2)% of the data in height is accounted for by the model, i.e. explained by the shoulder girth
D. About 100*(R2R2)% of data in shoulder girth is accounted for by the model, i.e. explained by height
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