A Regression Analysis Between Height Y (In Cm) and Age

question 47

Short Answer

A regression analysis between height y (in cm) and age x (in years) of 2 to 10 years old boys yielded the least squares line y-hat = 87 + 6.5x. This implies that by each additional year height is expected to: $\begin{array}{|l|l|}\hline A&\text {increase by \( 93.5 \mathrm{~cm} \). }\\\hline B&\text {increase by \( 6.5 \mathrm{~cm} \). }\\\hline C&\text {increase by \( 87 \mathrm{~cm} \). }\\\hline D&\text {decrease by \( 6.5 \mathrm{~cm} \). }\\\hline \end{array}$

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