The Daily Sales Figures Below Have Been Recorded in a Medium-Sized

question 70

Essay

The daily sales figures below have been recorded in a medium-sized insurance company. $$\begin{array}{l}\text { Week }\\\begin{array} { | l | c c c c | } \hline \text { Day } & 1 & 2 & 3 & 4 \\\hline \text { Monday } & 38 & 46 & 35 & 59 \\\text { Tuesday } & 40 & 36 & 52 & 53 \\\text { Wednesday } & 17 & 32 & 25 & 28 \\\text { Thursday } & 20 & 17 & 28 & 33 \\\text { Friday } & 26 & 20 & 32 & 20 \\\hline\end{array}\end{array}$$ a. Compute the three-day and five-day moving averages.
b. Plot the series and the moving averages on the same graph.
c. Does there appear to be a seasonal (weekly) pattern?

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Definitions:

Synthetic Drugs

Man-made chemical substances designed to mimic or enhance the effects of natural drugs, often used for recreational purposes.

Pain Receptors

Specialized nerve endings found throughout the body that detect painful stimuli and signal the central nervous system about potential injury or damage.

Chemoreceptors

Sensory receptors in the body that respond to chemical stimuli, such as taste or smell.

Middle Ear

The air-filled central cavity of the ear, behind the eardrum, containing the three smallest bones in the body that are involved in the transmission of sound vibrations.