A researcher regresses a quality-of-life INDEX on INCOME and EDUCATION. The Y-intercept is 10, the slope for INCOME is +2, and the slope for EDUCATION is −1. What's the correct regression equation?
A) INDEX = 11
B) INDEX = 10 + 2 - 1
C) INDEX = 2(INCOME) - 1(EDUCATION)
D) INDEX = 10 + 2(INCOME) - 1(EDUCATION)

Question

Quizplus · Accepted Answer

The correct regression equation is in the form of: INDEX = b0 + b1(INCOME) + b2(EDUCATION)
Thus, plugging in the given values, we get:
INDEX = 10 + 2(INCOME) - 1(EDUCATION)

A Researcher Regresses a Quality-Of-Life INDEX on INCOME and EDUCATION