The Actual and Forecast Values of a Time Series Are

question 55

Essay

The actual and forecast values of a time series are shown below. $$\begin{array} { | c c | } \hline \text { Actual values } y _ { t } & \text { Forecast values } F _ { t } \\\hline 2325 & 2330 \\2555 & 2595 \\2835 & 2860 \\3185 & 3125 \\3510 & 3390 \\\hline\end{array}$$ a. Calculate the mean absolute deviation (MAD).
b. Calculate the sum of squares for forecast error (SSE).

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Definitions:

Electromyography (EMG)

The insertion of needles into selected skeletal muscles for the purpose of recording nerve conduction time in relation to muscle contraction.

Electrical Activity

The movement or flow of electrical charges, often referring to physiological processes in the body.

Peripheral Muscles

Muscles located in the outer regions of the body, as opposed to those central to the core or trunk.

Voluntary Function

Actions or processes in the body controlled by an individual's conscious decision.