Consider a regression study involving a dependent variable y, a quantitative independent variable æ1, and a categorical independent variable with two levels (level 1 and level 2). a. Write a multiple...

please help- this is NOT GRADED, the check mark and red x comes from me hitting check my work.

Extracted text: Consider a regression study involving a dependent variable y, a quantitative independent variable æ1, and a categorical independent variable with two levels (level 1 and level 2). a. Write a multiple regression equation relating a1 and the categorical variable to y. 1. E(y) = Bo + B11 2. E(y) = Bo + B202 3. E(y) = Bo + Biaı + B2 4. E(y) = Bo + Bia1 + B202 Option 4 Enter the values of dummy variable æ2 that are used to indicate the two levels of the qualitative variable, If vour answer is zero, enter "0". Level 1 Level 2 b. What is the expected value of y corresponding to level 1 of the categorical variable? 1. E(y) = Bo + Bi01 2. E(y) = Bo + B2a2 3. E(y) = Bo + Bie1 + B2 4. E(y) = Bo + B, x1 + B2a2 Option 1