Question: WEBCAM RECORD A relatively recent firm has been active for the last five years and now wants to forecast annual sales for the current year,

WEBCAM RECORD A relatively recent firm has been
WEBCAM RECORD A relatively recent firm has been active for the last five years and now wants to forecast annual sales for the current year, 2021. based on the following historical data YEAR Sales- ty 1 2016 2017 2018 2019 2020 SUM 1 2 3 4 5 15 3.000 3.000 6.000 12.000 8.000 24.000 7.000 28.000 10.000 50.000 34.000 117.000 1 4 9 16 25 55 a. What is the forecast for this year, 2021, using a five year simple moving average? (4 pts) b. What is the forecast for this year using exponential smoothing with alpha=0.6. if the forecast for 2019 was 8,000? (4 pts) c. What is the least squares trend equation that shows the best relationship between demand and year? (4 pts) d. What is the forecast for this year, 2021, using the least squares trendline you found in part c? (2 pts)

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