In regression analysis, which of the following is not a required assumption about the error term $\varepsilon$:
A)the expected value of the error term is zero
B)the variance of the error term is constant
C)the values of the error term must be positive.
D)the error term is normally distributed
E)all of the above

Question

Quizplus · Accepted Answer

The assumption that the values of the error term must be positive is not a required assumption in regression analysis. Error terms can be positive, negative, or zero, as they represent the difference between observed and predicted values.

In Regression Analysis, Which of the Following Is Not a Required