A study tries to understand how children grow. The data were obtained by measuring the heights of 161 children and their corresponding ages. Their average age is 23.5 months, average height is 79.85 centimeters and the correlation between height and age is 0.9944. One can obtain a least-squares regression line as Height=64.932+0.6348*Age.
What will be the slope of the regression line if we try to infer a child's age from her height by setting Height to be the explanatory variable?
A) -0.6348. B) 1.5665. C) 1.5753. D) 1.5577. E) Not enough info