The Following Table Provides the Demand and the Forecast for the Television

question 41

Short Answer

The following table provides the demand and the forecast for the television model AK117 at a major electronics retailer. Calculate the CFE, MSE, MAD, and MAPE.
$$\begin{array} { | c | c | c | c | c | c | c | } \hline \text { Month } & \text { Demand } & \text { Forecast } & \text { Error } & \begin{array} { c } \text { Squared } \\\text { Error }\end{array} & \begin{array} { c } \text { Absolute } \\\text { Error }\end{array} & \begin{array} { c } \text { Absolute } \\\text { Percentage } \\\text { Error }\end{array} \\\hline 1 & 50 & 57 & - 7 & 42.25 & 6.5 & 13 \\\hline 2 & 60 & 54 & 6 & 36 & 6 & 10 \\\hline 3 & 55 & 55 & 0 & 0 & 0 & 0 \\\hline 4 & 45 & 58 & - 13 & 156.25 & 12.5 & 27.8 \\\hline 5 & 70 & 50 & 20 & 400 & 20 & 28.6 \\\hline 6 & 58 & 58 & 1 & 0.25 & 0.5 & 0.9 \\\hline 7 & 64 & 64 & 0 & 0 & 0 & 0 \\\hline 8 & 53 & 61 & - 8 & 64 & 8 & 15.1 \\\hline 9 & 59 & 59 & 1 & 0.25 & 0.5 & 0.8 \\\hline 10 & 62 & 56 & 6 & 36 & 6 & 9.7 \\\hline & & total & 6 & 735 & 60 & 106 \\\hline\end{array}$$

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Definitions:

Kinetic Energy

The energy that an object possesses due to its motion, dependent on the object's mass and velocity.

Ions

Atoms or molecules with a net electric charge due to the loss or gain of one or more electrons.

Molecules

The smallest unit of a chemical compound that can retain the chemical properties of the compound, consisting of one or more atoms bonded together.

First Law of Thermodynamics

This principle states that energy cannot be created or destroyed, only transformed from one form to another, implying that the total energy in an isolated system remains constant.