The following data show the quarterly sales of Amazing Graphics, Inc. for the years 6 through 8. 
a.Compute the four-quarter moving average values for the above time series.
b.Compute the seasonal factors for the four quarters.
c.Use the seasonal factors developed in Part b to adjust the forecast for the effect of season for year 6.
Definitions:
Biological Factors
Elements that are rooted in biology and affect human functioning, such as genetics, neurochemistry, and physical health.
Research Overlap
Occurs when different studies or investigations cover similar topics, methodologies, or findings.
Rapport Talk
A type of communication aimed at building connections, relationships, and mutual understanding.
Language of Conversation
The specific linguistic and pragmatic use of language in social interactions and dialogues.
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