A simple regression formula for predicting weight in pounds from height in inches is Ŷ= 1.6X + 60. What is the slope of the regression line to predict weight from height?
A) 60
B) 61.6
C) 37.5
D) Positive

Question

Quizplus · Accepted Answer

The slope of the regression line is the coefficient of the independent variable (in this case, height in inches), which is 1.6. This indicates the amount of change in the dependent variable (weight) for a one-unit change in the independent variable (height). Since 1.6 is a positive number, the slope is positive.

A Simple Regression Formula for Predicting Weight in Pounds from Height