Question: a. Determine quarterly seasonal relatives using the centered moving average method. b. Deseasonalize the sales. show the work please:) A car dealer wants to forecast
a. Determine quarterly seasonal relatives using the centered moving average method.
b. Deseasonalize the sales.

show the work please:)
A car dealer wants to forecast quarterly sales for each quarter of 2022, based on the data shown below: Year Quarter Sales 2018 225 1 2 3 272 233 4 2019 372 215 260 1 2 3 4 220 358 2020 1 2 3 4 210 252 212 2021 1 360 200 250 2 3 4 210 340 4 Year Quarter Sales 2018 1 2 3 4 225 272 233 372 215 260 220 358 2019 1 2 3 4Step by Step Solution
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