Shawna found a study of American women that had an equation

Shawna found a study of American women that had an equation to predict weight (in pounds) from height (in inches): = -260 + 6.6x. Shawna mom’s height was 68 inches and her weight was 179 pounds. The value of the residual for Shawna mom\'s weight and height, using this regression equation, is __________.

Solution

using the regression equation

Y = -260 + 6.6 * 68 = 188.8

The value of the residual for Shawna mom\'s weight and height,

is 179 - 188.8 = -9.8