Weekly Sales of the Weber Dicamatic Food Processor for the Past

question 20

Essay

Weekly sales of the Weber Dicamatic food processor for the past ten weeks have been: $$\begin{array} { c r | c r } \text { Week } & \text { Sales } & \text { Week } & \text { Sales } \\1 & 980 & 6 & 990 \\2 & 1040 & 7 & 1030 \\3 & 1120 & 8 & 1260 \\4 & 1050 & 9 & 1240 \\5 & 960 & 10 & 1100\end{array}$$
a. Determine, on the basis of minimizing the mean square error, whether a three-period or four-period simple moving average model gives a better forecast for this problem.
b. For each model, forecast sales for week 11.

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Definitions:

Marketers

Professionals involved in promoting, selling, and distributing a product or service.

Clothing

Textile items worn on the body, primarily designed for purposes such as protection, comfort, and social or cultural expression.

Cosmetics

Substances or products applied to the body, particularly the face, to enhance or alter appearance, often for beauty or grooming purposes.

Make-up Artist

A professional skilled in applying cosmetics and styling hair to enhance or alter an individual's appearance.