Question is below in the photo:

23. Multiple choice: The following estimated regression equation was developed relating yearly income (y in $1000s) of 30 individuals with their age (x1) and their gender (x2) (0 if male and 1 if female): y = 25 + 0.8x1 - 2x2. An alternative analysis used x3 (0 if female and 1 if male) instead of x2. What is the estimated regression equation for the alternative analysis? a. y = 25 + 0.8x1 - 2x3. y = 25 + 0.8x1 + 2x3. y = 23 + 0.8x1 + 2x3. [correct] d. y = 27 + 0.8x1 + 2x3