The following table includes the information about a monthly time series. 
When the exponential smoothing method with α = 0.5 is applied,what is the MSE?
Definitions:
Public Choice Analysis
is a field of economics that applies economic reasoning to political science, analyzing government actions in terms of economic efficiency and individual behaviors.
Political Science
The study of politics, government systems, and political behavior, focusing on the theory and practice of politics and analyses of political systems and political activities.
Economic Topics
Economic Topics are issues or subjects related to the production, distribution, and consumption of goods and services.
Redistribution of Income
Government policies or mechanisms aimed at reducing income inequality by reallocating wealth and income from richer to poorer segments of society.
Q9: The concepts of comparative advantage, specialization, and
Q13: Investment institutions usually have funds with different
Q25: Which of the following variables is not
Q34: The principles of economics cannot explain which
Q61: If the variance of the error term
Q67: Firms A,B,and C operate in the market
Q74: A marketing analyst wants to examine the
Q110: Which of the following is not considered
Q115: We use _ to derive the coefficient
Q123: Another name for an explanatory variable is