Question: Use a multiple regression model with dummy (indicator) variables to model the trend and seasonal effects. Let variable Period = 1 refer to the observation

Use a multiple regression model with dummy (indicator) variables to model the trend and seasonal effects. Let variable Period = 1 refer to the observation in quarter 1 of 2017 and Period = 2 to refer to the observation in quarter 2 of 2017 and so on. Furthermore, let dummy variable Q1 = 1 if Quarter 1, 0 otherwise; dummy variable Q2 = 1 if Quarter 2, 0 otherwise; and dummy Q3 = 3 if Quarter 3, 0 otherwise. You must submit your spreadsheets showing your regression analysis. YEAR QUARTER DEMAND 2017 1 767 2017 2 1046 2017 3 713 2017 4 1028 2018 1 871 2018 2 1227 2018 3 758 2018 4 1075 2019 1 743 2019 2 1238 2019 3 887

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