The following quarterly sales of a department store chain were recorded for the years 20132016. a. Calculate
Question:
a. Calculate the four-quarter centered moving averages.
b. Graph the time series and the moving averages.
c. What can you conclude from your time-series smoothing?
Transcribed Image Text:
Year 2014 2013 2015 2016 Quarter 18 33 25 41 22 20 36 33 3 27 38 44 52 29 4 31 26 45
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a Sales 4quarter moving average Centered moving average 18 22 182227314 2450 27 245028252 26375 2227...View the full answer
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