Question: A manager has been using a certain technique to forecast demand for gallons of ice cream for the past six periods. Actual and forecasted amounts

A manager has been using a certain technique to

A manager has been using a certain technique to forecast demand for gallons of ice cream for the past six periods. Actual and forecasted amounts are shown below. Period Demand Forecast 100 95 What is the sigma (or standard deviation) for this forecasting technique? 8.567 7057 None of the other choices are correct 05.055 06.078

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