Author Question: If a time series contains substantial irregular movement, the smoothing constant for a single ... (Read 94 times)

Anajune7 · **on:** Jun 24, 2018

If a time series contains substantial irregular movement, the smoothing constant for a single exponential smoothing model that is close to 1.0 will result in forecasts that are not as smoothed out as those that would occur

if a smaller smoothing constant was used.
Indicate whether the statement is true or false

Question 2

If a pair of variables have a strong curvilinear relationship, which of the following is true?

A) The correlation coefficient will be able to indicate that curvature is present.
B) A scatter plot will not be needed to indicate that curvature is present.
C) The correlation coefficient will not be able to indicate the relationship is curved.
D) The correlation coefficient will be equal to zero.