The Quarterly Sales ($Millions) of a Department Store Chain Were

question 7

Essay

The quarterly sales ($millions) of a department store chain were recorded for the years 1995-1998. $$\begin{array} { | c | c c | } \hline \text { Year } & \text { Quarter } & \text { Sales } \\\hline 1995 & 1 & 21 \\& 2 & 36 \\& 3 & 28 \\& 4 & 44 \\1996 & 1 & 25 \\& 2 & 23 \\& 3 & 39 \\& 4 & 36 \\1997 & 1 & 30 \\& 2 & 41 \\& 3 & 47 \\& 4 & 55 \\1998 & 1 & 34 \\& 2 & 29 \\& 3 & 32 \\& 4 & 48 \\\hline\end{array}$$ a. Calculate the four-quarter centred moving averages.
b. Graph time series and moving averages. State your conclusions about time-series smoothing?

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Definitions:

Training Motivation

The internal drive or external incentives that encourage individuals to participate in, commit to, and complete a training program.

Learning-Directed Behaviour

Refers to activities and actions that are specifically aimed at acquiring knowledge and skills.

Informal Learning

Learning that occurs in a natural, unstructured manner outside the confines of a formal education or training program.

Formal Learning

Formal learning is structured education that typically occurs in an institutional setting like schools or training centers, involving systematic instruction based on a curriculum.