The Actual and Forecast Values of a Time Series Are

question 141

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:

Luteinizing Hormone

A hormone produced by the pituitary gland that plays a key role in the reproductive system, triggering ovulation in females and testosterone production in males.

Ureter

A pair of muscular tubes that transport urine from the kidneys to the bladder in the urinary system.

Kidney

Organ of the vertebrate urinary system that filters and adjusts the composition of blood, and produces urine.

Urethra

A tube that connects the urinary bladder to the urinary orifice for the removal of fluids from the body.