The Actual and Forecast Values of a Time Series Are

question 122

Essay

The actual and forecast values of a time series are shown below. $$\begin{array} { | c c | } \hline \text { Actual values } y _ { t } & \text { Forecast values } F _ { t } \\\hline 135 & 140 \\162 & 165 \\155 & 150 \\182 & 191 \\174 & 168 \\194 & 190 \\233 & 220 \\280 & 240 \\\hline\end{array}$$ a. Calculate the mean absolute deviation (MAD).
b. Calculate the sum of squares for forecast error (SSE).

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Definitions:

Contemporary Organizations

Modern entities characterized by their adaptive strategies, innovative approaches, and often a flat or network-based structure.

Minorities

Groups in a society that are smaller in number and often have less power or representation compared to the majority group.

U.S. Population

The total number of people living in the United States, a figure that changes due to birth rates, death rates, and immigration.

Deregulation

The reduction or elimination of government power in a particular industry, usually intended to increase competition and efficiency.