A regression analysis between weight $y$ (in kilograms) and height $x$ (in centimetres) yielded the least squares line $\hat { y }$ = 135 + 6 $x$ . We estimate that for each 1 cm additional height, weight will decrease by 6 kilograms, on average.

Question

Quizplus · Accepted Answer

The coefficient of $x$ (height) in the regression equation $\hat { y }$ = 135 + 6$x$ is positive (+6), indicating that for each additional 1 cm in height, weight is estimated to increase by 6 kilograms, on average, not decrease.

A Regression Analysis Between Weight yyy (In Kilograms) and Height xxx (In Centimetres) Yielded the Least Squares Line

A Regression Analysis Between Weight $y$ (In Kilograms) and Height $x$ (In Centimetres) Yielded the Least Squares Line