Which of the following is true about forecasts:i) Forecasts are always wrong, therefore forecasters should include expected value and measure of errorii) Long-term forecasts are less accurate than short-term forecastsiii) Aggregate forecasts are more accurate than disaggregate forecastsiv) Demand forecasts are a primary input into capacity, sales, and production planningv) Time Series forecasts use historical demand to make forecasts based on the assumption past demand history is a good indicator of future demand and demand patters due not vary significantly from one year to the next

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