Quarterly sales of a local department store over a 4-year period are given below: Quarters Sales (in millions) Quarters Sales (in millions) 2016 QI 500 2018 Q1 560 2016 Q2 490 2018 Q2 580 2016 Q3 570 2018 Q3 630 2016 Q4 750 2018 Q4 720 2017 Q1 480 2019 Q1 540 2017 Q2 500 2019 Q2 590 2017 Q3 2019 Q3 2019 Q4 580 620 2017 Q4 740 790 The data shows sign of seasonality. By computing seasonal indices for each quarter, forecast the sales for each quarter in year 2020, given that the estimated sales in 2020 is $2600 million. Describe the trend component of the dataset.

Quarterly sales of a local department store over a 4-year period are given below: Quarters Sales (in millions) Quarters Sales (in millions) 2016 QI 500 2018 Q1 560 2016 Q2 490 2018 Q2 580 2016 Q3 570 2018 Q3 630 2016 Q4 750 2018 Q4 720 2017 Q1 480 2019 Q1 540 2017 Q2 500 2019 Q2 590 2017 Q3 2019 Q3 2019 Q4 580 620 2017 Q4 740 790 The data shows sign of seasonality. By computing seasonal indices for each quarter, forecast the sales for each quarter in year 2020, given that the estimated sales in 2020 is $2600 million. Describe the trend component of the dataset.

Practical Management Science

6th Edition

ISBN:9781337406659

Author:WINSTON, Wayne L.

Publisher:WINSTON, Wayne L.

Chapter13: Regression And Forecasting Models

Section13.7: Exponential Smoothing Models

Problem 29P: The file P13_29.xlsx contains monthly time series data for total U.S. retail sales of building...

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