A Time Series Analysis Was Performed to Determine the Number

question 7

Multiple Choice

A time series analysis was performed to determine the number of new online customers that joined the 'Jelly of the Month Club'.The actual number of new customers, the forecast values and the error terms are presented in the following table.The mean absolute deviation (MAD) for this forecast is ___________. $\begin{array}{|r|r|r|r|}\hline \text { Monthh } & \text { Actual } & \text { Forecast} & \text { Error } \\\hline \text { July } &4 & & \\\hline \text { Aug } & 6 & 5 &-1 \\\hline \text { Sept } & 3 & 6 &3 \\\hline \text { Oct } & 9 & 8& -1 \\\hline \text { Nov } &8 &9& 1 \\\hline\end{array}$

• A)-0.50
• B)0.50
• C)1.50
• D)7.00
• E)3.00

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Definitions:

Movement

Involves the change in position of an object or person, often referring to physical actions and activities.

Dot Location

A task or experiment setup where individuals are asked to identify or remember the location of dots on a screen or surface, often used in studies on spatial memory.

REM Sleep

A stage of sleep characterized by rapid eye movements, vivid dreaming, and increased brain activity.

Stage 1 Sleep

The initial phase of sleep, characterized as the transition period from wakefulness to sleep, during which individuals are easily awakened and may experience a sensation of falling.