Author Question: In a double smoothing model, the second smoothing constant is introduced to account for the trend in ... (Read 133 times)

Collmarie · **on:** Jun 24, 2018

In a double smoothing model, the second smoothing constant is introduced to account for the trend in the data if one exists.

Indicate whether the statement is true or false

Question 2

Which of the following is not an assumption of the multiple regression model?

A) The mean of the residuals is equal to the variance at all combinations of levels of the independent variables.
B) The regression error terms are normally distributed.
C) The model error terms are independent.
D) The residuals have a constant variance for all combinations of values for the independent variables.