Please show work using Excel

Please show work using Excel

Please show work using Excel

Do NOT answer without Excel

Following a three-season demand schedule (A, B and C) for cat hammocks, use the following table to predict demand for season C demand in 2020 using the Holt-Winter model (aka triple exponential smoothing model) with parameters alpha=0.15, beta=0.37 and gamma=0.05. Round to the nearest unit of demand (no decimals).

Season	Year	Demand
A	2017	1,383
B	2017	1,739
C	2017	2,399
A	2018	1,324
B	2018	3,511
C	2018	4,698
A	2019	3,218
B	2019	6,265
C	2019	8,544
A	2020	3,875
B	2020	6,811
C	2020	???