In the equation y i = β 0 + β1zi + e i ,z i is 0 if the ____.

The variable z i is an indicator variable for whether the i-th unit is in the treatment group or the comparison group. When z i equals 0, it means the i-th unit is in the comparison group. Therefore, the answer is B.

In the equation y i = β 0 + β1zi + e i ,z i is 0 if the ____.

The variable z i is an indicator variable for whether the i-th unit is in the treatment group or the comparison group. When z i equals 0, it means the i-th unit is in the comparison group. Therefore, the answer is B.

Solved

In the Equation Y_i = β₀ + β1zi + E_i,z_i

Question 31

Multiple Choice

In the equation y_i = β₀ + β1zi + e_i,z_i is 0 if the ____.

A) i^th unit is in the treatment group
B) i^th unit is in the comparison group
C) i^th unit residual is greater than the mean residual
D) i^th unit residual is less than equal to the mean residual

Correct Answer: