Use the Data Given Below to Answer the Following Questions)

question 33

Multiple Choice

Use the data given below to answer the following questions) .
The table provided below gives the sales details of the number of android smart phones at an electronic retail store for the past 6 weeks. The time series appears to be relatively stable, without trend, seasonal, or cyclical effects. The simple moving average value of k is set at 2. $$\begin{array} { | c | c | } \hline \text { Week } & \text { Units sold } \\\hline 1 & 88 \\\hline 2 & 44 \\\hline 3 & 54 \\\hline 4 & 65 \\\hline 5 & 72 \\\hline 6 & 85 \\\hline\end{array}$$
-For the given data, what is the value of the simple moving average mean square error?

• A) 0.21
• B) 20.12
• C) 14.25
• D) 207.13

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Definitions:

Myelin Layers

Myelin layers are protective coverings made of fatty substances that surround the axons of some neurons, facilitating the rapid transmission of electrical impulses along nerve cells.

Propagation Speed

The rate at which a wave, including sound, light, or electromagnetic waves, travels through a medium.

Action Potential

A brief change in the electrical charge of a neuronal membrane; the physical basis of the signal that travels the length of the neuron.

Excitation Threshold

The voltage difference between a neuron’s interior and exterior that, if exceeded, causes the neuron to fire.