Question
Case Study: Furniture and Home Furnishings Stores Sales (you can download the data from: https://fred.stlouisfed.org/series/MRTSSM442USN ) Period of Data: Jan 2010 - Dec 2022, month,
Case Study: Furniture and Home Furnishings Stores Sales (you can download the data from: https://fred.stlouisfed.org/series/MRTSSM442USN )
Period of Data: Jan 2010 - Dec 2022, month, seasonally unadjusted, (156 months)
Unit: millions of US $
This original series exhibit strong seasonal variation.
Apply EWMA (exponential smoothing), with alpha=0.5; and hence the dampening factor 0.5 to the data. What is the exponential-smoothed value for December 2022 (in million dollars)?
a) 12341.7 b. 12726.4 c. 12403.4 d. 12002.6
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Statistics The Art And Science Of Learning From Data
Authors: Alan Agresti, Christine A. Franklin
3rd Edition
9780321849281, 321755944, 321849280, 978-0321755940
